HIDETAKA OKADA
| Division of General Education（Graduate School of Informatics and Engineering） | Professor |
| Division of General Education（School of Informatics and Engineering ） | Professor |
| Center for Neuroscience and Biomedical Engineering | Professor |
| Department of Mechanical and Intelligent Systems Engineering | Professor |
| Cluster II (Emerging Multi-interdisciplinary Engineering) | Professor |
Researcher Information
Research Keyword
Career
- 01 Apr. 2015
電気通信大学情報理工学研究科共通教育部/知能機械工学専攻, 教授 - Apr. 2010 - Mar. 2015
電気通信大学情報理工学研究科知能機械工学専攻, 准教授 - Apr. 2007 - Mar. 2010
電気通信大学電気通信学部知能機械工学科, 准教授 - Nov. 2004 - Mar. 2007
電気通信大学電気通信学部知能機械工学科, 助教授 - Apr. 2001 - Oct. 2004
電気通信大学電気通信学部知能機械工学科, 講師 - Apr. 1999 - Mar. 2001
電気通信大学電気通信学部知能機械工学科, 助手 - Apr. 1998 - Mar. 1999
電気通信大学電気通信学部自然科学系列, 助手
Educational Background
Research Activity Information
Award
- Nov. 2021
バイオメカニズム学会
MRI画像を用いた日本人アスリートの身体部分密度の推定
バイオメカニズム学会論文賞, 岡田英孝;横澤俊治;高橋英幸
Official journal - Sep. 2014
Asia Society of Sports BIomechanics
Taiwan
5th Conference of the Asian Society of Sports Biomechanics Excellent Oral Paper Award, Shuhei Kurita;Hidetaka Okada
International society, Taiwan, Province of China - Sep. 1998
第14回日本バイオメカニクス学会大会奨励賞 - Mar. 1998
第1回秩父宮記念スポーツ医・科学賞奨励賞, 日本陸上競技連盟バイオメカニクス研究班の一員として受賞
Paper
- Estimation of joint and whole-body mechanical work from kinematics of the center of gravity
Kai Shimoda; Hidetaka Okada
9th World Congress of Biomechanics abstract book, P-1504, 10 Jul. 2022, Peer-reviwed
International conference proceedings, English - Age-related ground reaction force changes during gait
Aoi Shimura; Hidetaka Okada
9th World Congress of Biomechanics abstract book, O-15105, 10 Jul. 2022, Peer-reviwed
International conference proceedings, English - Prediction of lower limb joint kinetics during gait via machine learning
Onishi, Y; Dixon, P.C; Shah, V; Okada, H
Gait & Posture, 90, Suppl.1, 168-169, Oct. 2021, Peer-reviwed
International conference proceedings, English - Comparison of mechanical work done during walking by different calculation methods
Shimoda, K; Okada, H
Gait & Posture, 90, Suppl.1, 246-247, Oct. 2021, Peer-reviwed
International conference proceedings, English - EXAMINATION OF AN APPLICABLE RANGE FOR A MARKERLESS MOTION CAPTURE SYSTEM IN GAIT ANALYSIS
Sakurai, Takashi; Okada, Hidetaka
ISBS Proceedings Archive, 39, 1, Article 37, 03 Sep. 2021, Peer-reviwed
International conference proceedings, English - Estimation of body segment densities for Japanese Athletes from magnetic resonance imaging
岡田英孝; 横澤俊治; 高橋英幸
バイオメカニズム学会誌, バイオメカニズム学会, 44, 3, 162-170, 01 Aug. 2020, Peer-reviwed, The purpose of this study was to estimate the body segment density from one MRI image for each body segment bycontinuously acquiring cross-sectional images of Japanese male and female athletes using MRI. First, a preliminary analysis was conducted for six male and female athletes to determine the range of appropriate cross section selection for estimating the body segment density. Next, we used 21 other male and female athletes as subjects and estimated the body segment density from one MRI image for each body segment. As a result of the preliminary analysis, it was suggested that analysis of one MRI image for each body segment gave the similar value of body segment density as in analyzing many successive MRI images. Moreover, the sex difference in body segment densities between themale and female athletes and the difference in body segment densities between the athletes and the cadaver specimens (Caucasian middleaged or aged males) were clarified.
Scientific journal, Japanese - ラット骨格筋の等尺性収縮時におけるカルシウムイオン流入経路(Calcium ion influx pathway during eccentric contractions in rat skeletal muscle)
Tabuchi Ayaka; Eshima Hiroaki; Tanaka Yoshinori; Sudo Mizuki; Okada Hidetaka; Kano Yutaka
The Journal of Physical Fitness and Sports Medicine, (一社)日本体力医学会, 8, 6, 282-282, Nov. 2019
English - Energy Flow Analysis between Lower Limb Segments during the Instep Kick in Soccer
Tsuboi, Y; Okada, H
XXVIIth Congress of the International Society of Biomechanics Book of Abstract, 1245, Jul. 2019, Peer-reviwed
International conference proceedings, English - The classifications of the motional pattern of creepin
井筒紫乃; 岡田英孝; 川田裕次郎; 上村明; 秋元恵美
フューチャーアスレティックス, フューチャーアスレティックス研究会, 7, 29-30, 31 Mar. 2019
Research institution, Japanese - ランニングエコノミーと下肢動作・下肢筋活動
岡田英孝
ランニング学研究, ランニング学会, 30, 1, 115-122, 31 Jan. 2019, Invited
Symposium, Japanese - Regional differences in Ca2+ entry along the proximal-middle-distal muscle axis during eccentric contractions in rat skeletal muscle
Tabuchi A; Eshima H; Tanaka Y; Nogami S; Inoue N; Sudo M; Okada H; Poole D. C; Kano Y
Journal of Applied Physiology, 127, 3, 828-837, 2019, Peer-reviwed, True, Eccentric (ECC) contraction-induced muscle damage is associated with calcium ion (Ca2+) influx from the extracellular milieu through stretch-activated channels. It remains unknown whether Ca2+ influx consequent to repetitive ECC contractions is nonuniform across different muscle regions. We tested the hypothesis that there are regional differences in Ca2+ entry along the proximal-middle-distal muscle axis. Tibialis anterior (TA) muscles of adult male Wistar rats were exposed by reflecting the overlying skin and fasciae and ECC contractions evoked by peroneal nerve stimulation paired with simultaneous ankle extension (50 times/set, 2 protocols: 1 set and 10 sets). During ECC in the proximal, middle, and distal TA, we determined 1) muscle fiber extension by high-speed camera (200 frames/s) and 2) Ca2+ accumulation by in vivo bioimaging (Ca2+-sensitive probe Fura-2-acetoxymethyl ester). Muscle fiber extension from resting was significantly different among regions (i.e., proximal, 4.0%: < middle, 11.2%: < distal, 17.0%; ECC phase length at 500th contraction). Intracellular Ca2+ accumulation after 1 set of ECC was higher in the distal (1.46 ± 0.04, P < 0.05) than the proximal (1.27 ± 0.04) or middle (1.26 ± 0.05) regions. However, this regional Ca2+ accumulation difference disappeared by 32.5 min after the 1 set protocol when the muscle was quiescent and by contraction set 5 for the 10-set protocol. The initial preferential ECC-induced Ca2+ accumulation observed distally was associated spatially with the greater muscle extension compared with that of the proximal and middle regions. Disappearance of the regional Ca2+ accumulation disparity in quiescent and ECC-contracting muscle might be explained, in part, by axial Ca2+ propagation and account for the uniformity of muscle damage across regions evident 3 days post-ECC.NEW & NOTEWORTHY After 1 set of 50 eccentric (ECC) contractions in the anterior tibialis muscle, intracellular Ca2+ ([Ca2+]i) accumulation evinces substantial regional heterogeneity that is spatially coherent with muscle length changes (i.e., distal [Ca2+]i > middle, proximal). However, irrespective of whether 50 or 500 ECC contractions are performed, this heterogeneity is subsequently abolished, at least in part, by axial intracellular Ca2+ propagation. This Ca2+ homogenization across regions is consistent with the absence of any interregional difference in muscle damage 3 days post-ECC.
Scientific journal, English - 国内一流競技者の競技別身体部分慣性係数
Yokozawa, T; Tsujimura, R; Yasuyuki, K; Takahashi, H; Okada, H
JAPANESE JOURNAL of ELITE SPORTS SUPPORT, 8, 11-27, 2016, Peer-reviwed
Scientific journal, Japanese - DETECTION OF FOOT CONTACT AND TOE-OFF USING KINEMATIC DATA FOR TREADMILL RUNNING OVER A WIDE RANGE OF SPEEDS
Hidetaka OKADA; Shuhei KURITA; Shogo YABIKU
34th International Conference on Biomechanics in Sports CD-ROM of Proceedings, International Society of Biomechanics in Sports, P0102084, 2016, Peer-reviwed
International conference proceedings, English - COMPARISON IN LOWER LIMB KINEMATICS AFFECTING RUNNING ECONOMY OF TRAINED AND UNTRAINED RUNNERS
Shusuke Hatakeyama; Shuhei Kurita; Akira Shiihara; Hidetaka Okada
34th International Conference on Biomechanics in Sports CD-ROM of Proceedings, International Society of Biomechanics in Sports, P0115375, 2016, Peer-reviwed
International conference proceedings, English - EXAMINATION OF A METHOD FOR DETECTION OF WALKING HEEL STRIKE AND TOE-OFF OVER A WIDE RANGE OF SPEEDS
Takuya Sugimoto; Hidetaka Okada
34th International Conference on Biomechanics in Sports CD-ROM of Proceedings, International Society of Biomechanics in Sports, P0910367, 2016, Peer-reviwed
International conference proceedings, English - THREE-DIMENSIONAL MOTION ANALYSIS OF THE “TENKAN”-TECHNIQUE IN AIKIDO
Kazutoshi Kikkawa; Hidetaka Okada; Hikaru Kuratomi
34th International Conference on Biomechanics in Sports CD-ROM of Proceedings, International Society of Biomechanics in Sports, P0626501, 2016, Peer-reviwed
International conference proceedings, English - Characteristics of Power Exertions of the Pushing Movement in Judo
Saito, M; Iteya, M; Okada, H; Yanagisawa, H; Saito, S; Masuchi, C; Okada, H; Kimura, M
Bulletin of the Association for the Scientific Studies on Judo, Kodokan, Kodokan, 15, 83-93, 2015, Peer-reviwed
Scientific journal, Japanese - Age-associated changes of walking parameters in Japanese adult women.
Kazutoshi Kikkawa; Hidetaka Okada; Ryuga Oishi
Rejuvenation research, 17, 2, 229-34, Apr. 2014, Peer-reviwed, True, The purpose of this paper is to clarify the age-associated changes in walking movements. A two-dimensional movement analysis was conducted on a sample of 177 healthy women aged 19-82 years, with performance descriptors, kinematics, and kinetics as the parameters. An analysis of co-variance, with the gait velocity as co-variate and the categorized age group as a fixed factor, was adopted to examine the differences in each parameter among eight age groups. We conclude that age-associated changes in walking movement occur due to the essential effect of aging in walking, rather than due to differences in the physique or decrease of the gait velocity.
Scientific journal, English - Changes in lower limb muscle activity of distance runners with increase in running speed
Kurita, S; Okada, H
5th Conference of the Asia Society of Sports Biomechanics CD-ROM of Abstracts, 3B-3, 2014, Peer-reviwed
International conference proceedings, English - Evaluation of changes in gait with aging using a standard motion model
Etoh, K; Uemura, H; Okada, H
5th Conference of the Asia Society of Sports Biomechanics CD-ROM of Abstracts, 1C-11, 2014, Peer-reviwed
International conference proceedings, English - Body Segment Inertial Properties of Elite Athletes In Various Competitive Events
Okada, H; Tsujimura, R; Kosai, T; Yokozawa, T
XXIVth Congress of the International Society of Biomechanics CD-ROM of Abstracts, PS2-20C, Aug. 2013, Peer-reviwed
International conference proceedings, English - 高校生期の合気道稽古が身体に及ぼす効果
吉川和利; 岡田英孝; 森崇; 金丸純二
発育発達研究, Japan Society of Human Growth and Development, 2013, 59, 20-26, 2013, Peer-reviwed, In the present study, we examined longitudinal changes in body size and fitness test records of high school students (males：n=16 ; females：n=6) who had been engaged in"Aikido"as their extracurricular activities from the 1st through the 3rd grade. The chronological changes of body size and and fitness test records were analyzed by repeated-measure analysis of variance at significant level of P＜0.05. Both the body size physical fitness of every subject were significantly improved throughout the three years. This led us to the conclusion that, by training in "Aikido""throughout their high school years, even the subjects with poor body compositions at baseline showed conspicuous improvement compared with the standard levels of japanese high school counterparts. Another significant improvement was observed in their fitness test records , especially such components as flexibility, agility and grip-strength. Thus, our findings suggest that tge specific skill training in "Aikido", such as footwork,turnover of attack and defense, and'kata' (training of forms), might result in the improvement of fitness levels.
Scientific journal, Japanese - 〔第24回ランニング学会大会 シンポジウムⅠ〕 マラソン2時間を考える
狩野豊; 榎本靖士; 忠鉢信一; 岡田英孝
ランニング学研究, ランニング学会, 24, 2, 19-42, 2013, Invited
Symposium, Japanese - Approach to assessing the walking motion of elderly males based on kinetic parameters of young males.
Fumito Ito; Takashi Mori; Kazutoshi Kikkawa; Hidetaka Okada
Rejuvenation research, 15, 2, 198-200, Apr. 2012, Peer-reviwed, True, The objectives of this study were to explore a method of evaluating the walking motion of elderly males using mainly kinetic parameters and to determine how to maintain their level of walking motion to equal that of the young. We employed the coefficient of variation (CV) (=standard deviation[SD]/MEAN * 100), z-score, and weighted z-score (WZ) (=z-score/CV) and examined the relationship between the WZ of each parameter and age by regression analysis. Finally, we used the regression line to estimate "gait age" and determined the critical factors of gait decay in elderly individuals.
Scientific journal, English - Effects of different athlete morphologies on body segment inertial properties
Okada, H; Abe, T; Tsujimura, R; Yokozawa, T
XXIIIrd Congress of the International Society of Biomechanics ISB2011 Programme and proceedings, NO. 1213, Jul. 2011, Peer-reviwed
International conference proceedings, English - Running Economy and Gastrocnemius Muscle Length during Running for Kenyan and Japanese Elite Distance Runners
Enomoto, Y; Suzuki, Y; Yokozawa, T; Okada, H
Portuguese Journal of Sport Sciences, 11, Supple. 2, 483-485, Jun. 2011, Peer-reviwed
International conference proceedings, English - WHAT IS COEFFICIENT OF SPEED ENDURANCE TO ACHIEVE TWO-HOUR MARATHON?
Yutaka Kano; Hidetaka Okada; Yasunori Morioka
JOURNAL OF APPLIED PHYSIOLOGY, AMER PHYSIOLOGICAL SOC, 110, 1, 289-289, Jan. 2011
English - TIME-RESOLVED DIFFUSE OPTICAL TOMOGRAPHY OF HUMAN FOREARM UNDER EXERCISE
Yasuomi Endo; Yukari Tanikawa; Shinpei Okawa; Kazuto Masamoto; Hidetaka Okada; Tomohiro Kizuka; Michio Miyakawa; Yoko Hoshi; Yukio Yamada
PROCEEDINGS OF THE ASME/JSME 8TH THERMAL ENGINEERING JOINT CONFERENCE 2011, VOL 1 PTS A AND B, AMER SOC MECHANICAL ENGINEERS, 71-+, 2011, Peer-reviwed, Light in the near-infrared wavelength range can penetrate deeping into biological tissues because the absorption by both water and hemoglobin is much smaller than in the other wavelength ranges. Oxygenated and deoxygenated hemoglobins have different light absorption characteristics. Therefore, by obtaining tomographic images of the absorption characteristics, it will be possible to know the hemodynamics inside deep tissues. Thus, the diffuse optical tomography (DOT) is expected as a new modality of biomedical imaging. In this study, we try to obtain DOT images of the forearms by conducting two types of exercise, and their differences caused by the muscle activity are discussed. By comparing the reconstructed DOT images with the magnetic resonance images of the forearm at the same position, the activated muscles can be identified in detail. As a result, the hemodynamics in the dominant muscles when performing flexion and extension of wrist are observed.
International conference proceedings, English - Three-dimensional motion analysis of Aikido Tenchi-nage
Kikkawa; K. Yamabe, T; Okada, H
ICHPER･SD 2011 Asia Congress book of abstract, 90, 2011
International conference proceedings, English - Approach to assessing the walking motion of elderly males based on kinematic parameters of young males
Ito, F; Mori, T; Kikkawa, K; Okada, H
Rejuven. Res., 14, Supple., s-20, 2011, Peer-reviwed
International conference proceedings, English - Regression Analysis of Walking Parameters for the Age-Predictive Equation
Kazutoshi Kikkawa; Hidetaka Okada; Takashi Mori
REJUVENATION RESEARCH, MARY ANN LIEBERT INC, 13, 2-3, 335-338, Apr. 2010, Peer-reviwed, We tried to establish an age-predictive equation from kinematic and kinetic parameters during walking using the 2007 Okada database of Japanese elderly. Some predictive equations were established for each gender (109 males and 139 females)-once for all variables, second for the stepwise variable selection method. The range of motion (ROM) of knee and hip and step length are the stable parameters in age-predictive models for both genders. Although the model achieved the Minimum Akaike's Information Criterion Estimate (MAICE), it did not reflect sufficiently the regimes of variable selection.
Scientific journal, English - 〔第21回ランニング学会大会シンポジウム ランニングフォームの最新型〕 ケニア人と日本人のランニングフォームの比較
榎本靖士; 横澤俊治; 岡田英孝
ランニング学研究, ランニング学会, 21, 2, 39-44, 2010, Invited
Symposium, Japanese - Characteristics of joint mechanical work in male and female elderly during walking in consideration of velocity
Okada, H; Mori, T; Kikkawa, K
Proceedings of the 28th Conference of the International Society of Biomechanics in Sports, 779-780, 2010, Peer-reviwed
International conference proceedings, English - Determination of body segment inertia parameters using 3D human body scanner and 3D CAD software
Abe, T; Yokozawa, T; Takamatsu, J; Enomoto, Y; Okada, H
Proceedings of the 28th Conference of the International Society of Biomechanics in Sports, 511-512, 2010, Peer-reviwed
International conference proceedings, English - Segment inertial properties of Japanese and Kenyan elite male distance runners determined by three-dimensional body scanner
Okada, H; Abe, T; Enomoto, Y; Shibutani, T; Takamatsu, J; Yokozawa, T
XXIInd Congress of the International Society of Biomechanics CD of Abstract, O, 2009, Peer-reviwed
International conference proceedings, English - Running economy and running mechanics for Kenyan and Japanese elite runners
Enomoto, Y; Yokozawa, T; Okada, H; Shibutani, T; Okazaki, K; Morioka, Y; Maegawa, T; Takamatsu, J; Takahashi, H; Sugita, M
XXIInd Congress of the International Society of Biomechanics CD of Abstract, E, 2009, Peer-reviwed
International conference proceedings, English - Toe clearance variability during walking in older Japanese stroke patients
Shimura, Y; Okada, H; Sakai, T; Hayashi, Y; Ohkawara, K; Numao, S; Katayama, Y; Tanaka, K
The 56th ACSM Annual Meeting, S, 2009, Peer-reviwed
International conference proceedings, English - Gait characteristics during walking on known tripping floor surfaces in older Japanese stroke patients
Yukie Shimura; Hidetaka Okada; Tomoaki Sakai; Yoichi Hayashi; Kazunori Ohkawara; Shigeharu Numao; Yasutomi Katayama; Kiyoji Tanaka
JOURNAL OF AGING AND PHYSICAL ACTIVITY, HUMAN KINETICS PUBL INC, 16, S46-S47, Jul. 2008, Peer-reviwed
International conference proceedings, English - The Development for the Plantar Pressure Sensor Shoes for Gait Analysis
Hirasawa, M; Okada, H; Shimojo, M
Journal of Robotics and Mechatronics, 20, 2, 289-295, Apr. 2008, Peer-reviwed
Scientific journal, English - Variance of lower limb kinematics during running on treadmill
Okada, H; Ozaki, R
Book of Abstracts in The XXVI International Conference on Biomechanics in Sports, 479, 2008, Peer-reviwed
International conference proceedings, English - The effect of ground reaction force components on ankle joint torque during walking
Okada, H; Ae, M; nd Robertson; D. G. E
J. Biomechanics, 40, S2, S511, 2007, Peer-reviwed
International conference proceedings, English - Kinetic Characteristics of middle-aged and older adults during walking
Okada, H; Kuno, S; Matsuda, M; Ae, M
International Society of Biomechanics XXth Congress CD-ROM of Abstracts, 818, Jul. 2005, Peer-reviwed
International conference proceedings, English - Smart suit with variable stiffness mechanism (3rd report, development of a prototype and verify the effectiveness)
Toshiaki Hayashi; Takayuki Tanaka; Maria Q. Feng; Hidetaka Okada
Proceedings of SPIE - The International Society for Optical Engineering, 6048, 60480F, 2005, Peer-reviwed, Wearable robots, especially power suits to enhance human activity are one of the most interesting and important topics. This study aims to develop a wearable robot that is small-size, light-weight for improving human performance and reducting muscle fatigue. So we proposed smart suit with variable stiffness mechanism that utilize elastic forces for assist and make assistance control by impedance control. Because of to utilize elastic forces for assist, the capacity of the suit do not reliance on weight of actuators and their's energy source well than conventional power suits. In consequence, we think the suit can realize miniaturization and getting light-weight. In a previous study, we verified the effectiveness of smart suit with variable stiffness mechanism by experiments and simulations in order to design the suit which can tune the stiffness of joint mechanically, and had been able to confirm the effectiveness. Based on these results, we design the smart suit with variable stiffness mechanism that be able to control number of working spring by small actuator, and at any knee joint angle, elastic energy occurrence is variable by displacement angle of ankle joint. We could obtain a result of the output per a mass of the suit is more large than conventional power suits. And we confirm that reducting muscle fatigue by experiments on knee bends and walking in case that subjects wear the suit. In this paper, we show the suit that we developed and effectiveness of the suit for human working.
International conference proceedings, English - 高齢者のロコモーションの特徴‐一般高齢者からマスターズスプリンターまで‐
岡田英孝
Lead, スプリント研究, 日本スプリント学会, 14, 48-60, 2004, Invited, False
Japanese - Change in walking kinetics with aging for elderly males older than sixty
Okada, H; Ae, M
International Society of Biomechanics XIXth Congress Book of Abstracts, 303, Jul. 2003, Peer-reviwed
International conference proceedings, English - Developmental changes of stride characteristics and running skills for children
Okada, H
Proceedings of the Fourth ICHPER.SD Asia Congress, 296-299, 2003
International conference proceedings, English - Horizons for physical education in the university of science and technology: From the test of physical strength in The University of Electro-Communications
Fukasawa, K; Okada, H; Kano, Y; Wada, K; Nagasawa, J; Yanagisawa, H; Oga, J
Proceedings of the Fourth ICHPER.SD Asia Congress, 35-39, 2003
International conference proceedings, English - Characteristics of lower limb joint kinetics for elderly males in walking and running at various speeds
Okada, H; Ae, M
Proceedings of the International Workshop on Gerontechnology, 37-38, 2001, Peer-reviwed
International conference proceedings, English - Kinetic parameters required during locomotion of same velocities in young and elderly males
Okada, H; Ae, M
International Society of Biomechanics XVIIIth Congress Book of Abstracts, 85, 2001, Peer-reviwed
International conference proceedings, English - バイオメカニクス的視点からみた高齢者のlocomotionの特徴
岡田英孝; 阿江通良
21世紀と体育・スポーツ科学の発展-日本体育学会第50回記念大会誌3-, 203-211, 2000
Research society, Japanese - Relationship between the features of velocity change in the men's 400-m hurdle race and performance : analysis of the race pattern for world class athletes
Morioka Yasunori; Sugita Masaaki; Matsuo Akihumi; Okada Hidetaka; Ae Michiyoshi; Kobayashi Kando
Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences), Japan Society of Physical Education, Health and Sport Sciences, 45, 3, 414-421, 2000, Peer-reviwed, This study was conducted to clarify the relationship between features of change in velocity and performance of world class athletes in the men's 400-m hurdle race(400mH).Nine final races of 400mH were videotaped with several video cameras panning from the start to the finish at 60 fields/s.After the time indication had been superimposed on each field of the VTR images, the time at touchdown immediately after hurdling was obtained.Using the flash of the starter's gun recorded on the VTR image, each hurdle touchdown time from the start, and each section thme(from each hurdle to the next)was obtained.The results of regression analysis showed a significantly high correlation (r=0.90, p<0.001)between 400mH performance and mean section velocity from the 5th to the 8th hurdle(H5-8), and a significant correlation(r=-0.61, p<0.05)between 400mH performance and te rate of deceleration in H5-8.These results indicate that in 400mH it is important to avoid decreasing velocity and to maintain a high velocity in H5-8 of the race in order to attain a high performance.
Scientific journal, Japanese - Biomechanical differences in standing long and vertical jump of young and elderly males
Okada, H; Ae, M
The Physiologist, 43, 4, 363, 2000, Peer-reviwed
International conference proceedings, English - 〔特集 長距離走のランニング・フォームを考える〕長距離走における走動作のバイオメカニクス的分析
榎本靖士; 阿江通良; 岡田英孝
ランニング学研究, ランニング学会, 11, 1, 56-60, 2000, Invited
Symposium, Japanese - 高齢者の歩行中のまたぎ越し動作に関するkinematics的研究
阿江通良; 岡田英孝; 尾碕哲郎; 藤井範久
バイオメカニズム学会誌, バイオメカニズム学会, 23, 2, 112-121, 1999, Peer-reviwed, The purpose of this study was to investigate motion patterns for elderly people stepping over obstacles with a videography by comparing with those of the young. Crossing speed, step length, and step frequency of the elderly were significantly smaller than those of the young. With an increase in obstacle heights, crossing speed and step frequency decreased in the elderly, but there was no significant change in those of the young. With increased obstacle heights, the elevation of the lead leg increased in both groups, depending more on the elevation of the thigh and the flexion of the hip and ankle joints for the elderly, and the elevation of the shank and knee flexion for the young. In the elderly, the range of motion for the upper arm was significantly smaller than that of the young, and the forward lean of the trunk increased after landing of the lead leg at high obstacle. This may have made the clearance of the trail leg easier.
Scientific journal, Japanese - 力学的エネルギー利用の有効性から見た長距離走者の疾走技術
榎本靖士; 阿江通良; 岡田英孝; 藤井範久
バイオメカニクス研究, 日本バイオメカニクス学会, 3, 1, 12-19, 1999, Peer-reviwed
Scientific journal, Japanese - 高齢者の歩行動作特性 -歩行速度の影響を考慮したkinematicsの検討-
岡田英孝; 阿江通良
バイオメカニクス研究概論, 121-126, 1999
Research society, Japanese - 傾斜面でのリバウンドジャンプにおける腓腹筋のstiffnessがアキレス腱張力に及ぼす影響
尹聖鎮; 大山卞圭吾; 岡田英孝; 高松薫
体育学研究, Japanese Society of Physical Education, Health and Sport Sciences, 44, 6, 510-521, 1999, Peer-reviwed, A study was conducted to investigate the effect of gastrocnemius muscle stiffness on achilles tendon force in rebound jumps on slanted contact surfaces. Five trained college jumpers and throwers, and six active males executed five continuous repetition rebound jumps under three surface gradient conditions. The surface gradients were 8 degrees uphill type (U8), 8 degrees downhill type (D8), and level type (L) conditions. Force plate and limb position data were recorded simultaneously during all jumps. The changes in length of the achilles tendon (L_), m. gastrocnemius (L_ ) and gastrocnemius muscle-achilles tendon complex (L_ ) during the eccentric phase were calculated according to the mode1 of Voigt et al. (1995) and Grieve et al. (1978). The main results were as follows; 1. Jumping height in U8 and L was higher than in D8. There was also a tendency for a higher achilles tendon force at the midpoint (ATF_ ) in U8. On the other hand, in U8 and D8, L_ was lower, and L_ /L_ was higher than in L. 2. There was significant positive correlations between the ground reaction force at the midpoint (GRF_ ) and jumping height, and ATF_ and jumping height in U8, D8 and L. 3. There were significant positive correlations between GRF_ and ATF_ , and L_ /L_ and ATF_ in U8 and L. However, L_lt:MTC> and ATF_ showed a significant negative correlation. These results indicate that the stretch length of the gastrocnemius muscle-achilles tendon complex is lower, and ATF_ higher under uphill-type conditions than under level conditions because L_ becomes higher as gastrocnemius muscle stiffness increases.
Scientific journal, Japanese - リバウンドジャンプから見た持久走による脚筋疲労
三本木温; 佐伯徹郎; 岡田英孝; 高松薫
バイオメカニクス研究, 日本バイオメカニクス学会, 3, 2, 86-94, 1999, Peer-reviwed
Scientific journal, Japanese - Joint mechanical work in walking and running of young and elderly males
Okada, H; Ae, M
International Society of Biomechanics XVIIth Congress Book of Abstracts, 719, 1999, Peer-reviwed
International conference proceedings, English - Is the selection of body segment inertia parameters critical to the results of kinematic and kinetic analysis of human movement?
T Yokoi; A Takahashi; H Okada; KB Ohyama; M Muraoka
ANTHROPOLOGICAL SCIENCE, ANTHROPOLOGICAL SOC NIPPON, 106, 4, 371-383, Oct. 1998, Peer-reviwed, We studied the effects of body segment inertia parameters (BSPs) on the results of biomechanical analyses of human movement.. The vertical jump was taken as an example. A subject was asked to perform 15 vertical jumps. He was measured using an automatic coordinate acquisition system and a force platform. Kinematic and kinetic variables were computed using five BSP sets: 1) Average for three-year-old Japanese children reported by Yokoi and others (1986), 2) Regression equation for young adult Japanese athletes reported by Ae and others (1992), 3) Average for young adult Japanese athletes reported by Ae and others (1992), 4) Average for young Japanese adults reported by Matsui (1956), and 5) Average for aged Caucasian cadavers reported by Chandler and others (1975). Vertical displacement and velocity for body segments and for the whole body exhibit few differences among the five sets. In time-series curves for each joint torque, the variance shown by a single subject was more pronounced than the variance due to differences in BSPs. These results suggest that selection of BSPs apparently has little effect on the results of kinetic analyses of human movement and on conclusions based on these results.
Scientific journal, English - Kinematics and effectiveness of mechanical energy utilization of long distance running
榎本靖士; 阿江通良; 岡田英孝
Reseach Quarterly for Athletics, 日本学生陸上競技連合, 28, 1, 8-15, 1997, Peer-reviwed
Scientific journal, Japanese - Change in mechanical work done by the joints during walking and vertical jump with aging.
岡田英孝; 阿江通良; 藤井範久
身体運動のバイオメカニクス(日本バイオメカニクス学会), 74-80, 1997, Invited
Research society, Japanese - Changes in the lower limb motion during 100m sprint -Application of data acquisition system for the lower limb motion-
森丘保典; 阿江通良; 岡田英孝; 高松潤二; 宮下憲
Japanese Journal of Sports Sciences, ソニ-企業, 16, 1, 111-118, 1997, Peer-reviwed
Scientific journal, Japanese - 加齢および歩行速度が歩行中の関節の力学的仕事に及ぼす影響
岡田英孝; 今村美由起; 阿江通良; 藤井範久
第13回日本バイオメカニクス学会大会論文集（身体運動のバイオメカニクス）, 120-126, 1997
Research society, Japanese - Mechanical energy expenditure and effectiveness of mechanical energy utilization of walking for the elderly and the young males
Okada, H; Ae, M; Fujii, N
International Society of Biomechanics XVIth Congress Book of Abstracts, 63, 1997, Peer-reviwed
International conference proceedings, English - Relationships between architectural characteristics of knee extensor muscles and jumping power during squat jumping
Akima, H; Shirakura, H; Takahashi, H; Okada, H; Kubo, Y; Ae, M; Muraki, Y; Katsuta, S
International Society of Biomechanics XVIth Congress Book of Abstracts, 234, 1997, Peer-reviwed
International conference proceedings, English - Effectiveness of mechanical energy utilization in long distance runners
Enomoto, Y; Ae, M; Okada, H
International Society of Biomechanics XVIth Congress Book of Abstracts, 203, 1997, Peer-reviwed
International conference proceedings, English - Effects of slanted contact surface on neuromuscular control of the human triceps surae muscle in stretch-shortening cycle exercises
Yoon, S; Ohyama, K. B; Okada, H; Fujii, N; Takamatsu, K
International Society of Biomechanics XVIth Congress Book of Abstracts, 246, 1997, Peer-reviwed
International conference proceedings, English - Application of body segment inertia parameters for elderly to motion analysis.
岡田英孝; 阿江通良
Japanese Journal of Sports Sciences, 15, 3, 169-175, 1996, Invited
Japanese - Body segment inertia properties of Japanese elderly
岡田英孝; 阿江通良; 藤井範久; 森丘保典
バイオメカニズム13, Society of Biomechanisms, 13, 125-139, 1996, Peer-reviwed, In the analysis of human movement, it is significant that appropriate parameters of the inertia property of body segments should be used because they will affect various computed kinetic variables. When analyzing the movement of elderly people, it is also desirable to use the inertia parameters of the body segments suitable for the elderly. Although there are appropriate sets of inertia parameters of the body segments for children (Yokoi et al., 1986) and young adults (Ae et al., 1992) of Japanese, no report exists on those for Japanese elderly. The purposes of this study were to determine the mass, the location of the center of mass (CM) and the principal moments of inertia about three axes of the body segments for Japanese elderly males and females by using an elliptical zone model (Jensen, 1978; Ae et al., 1992), and to develop a set of regression equations to estimate inertia parameters of the body segments using simple anthropometric measurements as predictors. Subjects were 90 Japanese elderly males aged 62 to 86 yr. (mean 75.1 yr.) and 89 Japanese elderly females aged 61 to 83 yr. (mean 73.0 yr.). Each subject, wearing swimming suit and cap, was photographed in a standing position in the measurement frame with a thin mirror mounted at an angle of 45° to the subject. Body segments were the head, whole torso, upper arms, forearms, hands, thighs, shanks, feet, upper torso and lower torso. They were modeled as a stacked system of elliptical zones 2cm in thickness. Segment density was assumed to be uniform and selected from 26 sets of segment densities after Dempster (1955) and Chandler et al. (1975). The mean errors in the estimation of total body mass were -0.07±0.54% (maximal error: -2.03%) for the males and -0.01±0.45% (maximal error: -1.27%) for the females. Equations for the estimation of the body segment inertia parameters were determined using a stepwise multiple regression with age, standing height, body weight and segment length as predictors. The results obtained could be summarized as follows: 1) There were significant differences in many body segment inertia parameters between the elderly males and females. The percent mass ratios of the forearm, hand, foot and upper torso for the elderly males were significantly larger than those for the elderly females, but the thigh, shank and lower torso ratios for the elderly females were significantly larger than those for the males. 2) There were significant differences in many body segment inertia parameters between the elderly and the young adults (Ae et al., 1992) and between the Japanese elderly and the Canadian elderly (Jensen et al., 1993; 1994). 3) The correlation coefficients between the body segment inertia parameters determined and estimated from the regression equations were all significant (0.328-0.979; p<0.01). The equations determined in this study should be valid for estimation of the body segment inertia properties for Japanese elderly.
Scientific journal, Japanese - Mechanical power output of the lower limb joints for the elderly in vertical jump
Okada, H; Ae, M
International Society of Biomechanics XVth Congress Book of Abstracts, 690-691, Jul. 1995, Peer-reviwed
International conference proceedings, English - Changes in the lower limb motion during 100m sprint - Application of data acquisition system for the lower limb motion
Morioka, Y; Ae, M; Okada, H; Takamatsu, J; Miyashita, K
International Society of Biomechanics XVth Congress Book of Abstracts, 636-637, Jul. 1995, Peer-reviwed
International conference proceedings, English - Effects of difference in body segment parameters on biomechanical analysis of human movement
Yokoi,T; Ohyama,K; Okada, H; Kawamura, H; Yoshida, K; Takahashi, A
139, 1995
International conference proceedings, English - QUANTIFICATION AND A SIMPLE CORRECTION OF PERSPECTIVE ERROR IN 2-DIMENSIONAL MOTION ANALYSIS OF HUMAN MOVEMENT
T YOKOI; H OKADA
ANTHROPOLOGICAL SCIENCE, ANTHROPOLOGICAL SOC NIPPON, 102, 3, 305-317, Jul. 1994, Peer-reviwed, The perspective error in two-dimensional motion analysis based on film and/or video images was theoretically quantified, and the practical effects of the error on the accuracy in two-dimensional kinematic variables were investigated using the data of sprint running. The equations proposed in the present study may be useful for estimating the amount of perspective error and determining appropriate camera distance in two-dimensional motion analysis. In practical analysis of human movement, the error affects translational and rotational kinematics of limb segments. If the optical axis of the camera is perpendicular to the calibration plane and the intersection of the axis and plane can be detected, the effects of perspective error on translational kinematics for the limb segments can be reduced to a certain extent.
Scientific journal, English - Power output of the lower limb joints in jumping for the elderly
岡田英孝; 阿江通良; 森丘保典; 宮西智久; 斎藤望; 古藤高良; 浅野勝己
バイオメカニズム12, Society of Biomechanisms, 12, 85-96, 1994, Peer-reviwed, In an aging society, it is important to study the states and mechanisms of decline in body functions with aging and of changes in motion with aging. It is especially valuable to investigate the functions of the lower extremities, since they are main factors determining safety as well as competitiveness in almost all sports activities. The purpose of this study is to cross-sectionally investigate the changes in joint moment and power of lower extremities for the elderly during a standing long jump using a force platform and a high-speed VTR camera. The subjects of this study were thirty-three healthy elderly males (62yr. to 86yr.). They were divided into three age groups: the 60s(n=12), 70s(n=14), and 80s(n=7). They were videotaped at 200 frames per second with high-speed VTR camera while they were performing the standing long jump from a force platform with maximal effort. Using ground reaction force data from the force platform and coordinate data of seven body landmarks (toe, ball of the foot, heel, ankle, knee, great trochanter, and suprasternale) from VTR images, equations of motion for thigh, shank, and foot were solved, and then joint moments, powers, and mechanical works were calculated. Joint moment curves and power curves were evaluated after being normalized by time from the start of the jump (ST) to the takeoff (OFF) and averaged for each group. For the hip and knee joint extensor's moment acted predominantly from ST to the point of about 90% completion of the jump, and then flexor's moment acted predominantly up to the OFF. For the ankle joint, extensor's moment acted predominantly through-out the jump. The power curve for the hip and knee has three peaks. The first one was power by extensor's eccentric contraction (EEh, EEk), the second was power by extensor's concentric contraction (ECh, ECk), and the third was power by flexor's eccentric contraction (FEh, FEk). The power curve for the ankle has only two peaks (EEa, ECa). From the investigation of these curves and these maximum values, the following results were obtained. 1) Although the magnitude of downward kicking force in a standing long jump hardly changed with aging, magnitude of backward kicking force decreased with aging, and jumping distance for the elderly also decreased proportionately. 2) Maximum extensor's moment and maximum power of joints in lower extremities decreased with aging. The magnitude of decrease was the largest in the hip joint, the second largest in the ankle joint, and smallest in the knee joint. 3) The power by concentric contraction of the extensors in the standing long jump was influenced by aging and decreased. The power by eccentric contraction of the extensors, however, was hardly influenced by aging. 4) In a standing long jump, which requires that the body be largely inclined at the takeoff, elderly people tended to jump with smaller forward incline of their bodies to avoid being in an unstable situation.
Scientific journal, Japanese - Cross-sectional study on changes in running kinematics with aging in master's distance runners
岡田英孝; 阿江通良; 大木昭一郎
体育の科学, 杏林書院, 44, 9, 753-760, 1994, Peer-reviwed
Scientific journal, Japanese - Changes in running kinematics for the master's distance runners with aging
Ae, M; Okada, H; Ooki, S
Proceedings of the‘94 International Sport Science Congress, 332-346, 1994, Invited
International conference proceedings, English - An application of direct linear transformation method to three dimensional anthropometry using slide film image
Yokoi, T; Kouchi, M; Okada, H
J. Anthrop. Soc. Nippon, The Anthropological Society of Nippon, 100, 4, 527-534, 1993, Peer-reviwed, Direct linear transformation (DLT) method was applied to the three dimensional anthropometry using slide film image, and the limitation of estimation accuracy was examined by comparing values obtained through the computation based on DLT procedures and manual measurement. The standard errors of estimated three dimensional coordinates were around 4mm in 1, 000mm×1, 000 mm×2, 000mm of calibration area. Also, the acceptable estimation errors of anthropometric dimensions were obtained through the present photogrammetry. The three dimensional slide film analysis with DLT method thus may be an useful photogrammetry for estimating anthropometric dimensions as well as spatial relations among anthropometric landmarks.
Scientific journal, English - Biomechanical study on changes in running kinematics with aging in master's distance runners
Okada, H; Ae, M
International Society of Biomechanics XIVth Congress Book of AbstractsⅡ, 982-983, 1993, Peer-reviwed
International conference proceedings, English
MISC
Books and other publications
- 健康論 : 大学生のためのヘルスプロモーション
電気通信大学健康・スポーツ科学部会; 電気通信大学; 安藤, 創一; 大河原, 一憲; 岡田, 英孝; 小熊, 妙子; 狩野, 豊; 黒谷, 佳代; 栃木, 衛; 深澤, 浩洋; 星野, 太佑
Japanese, Joint work, 第6章 身体運動と健康, viii, 178p, 道和書院, Mar. 2023, 9784810521443 - Augmented Human
暦本純一; 深代千之; 岡田英孝; 横井浩史; 室伏広治; 吉岡伸輔; 牛場潤一; 山中俊治; 和田佑一; 脇谷滋之; 鈴森康一; 中村太郎; 竹岡敬和; 小木曽公尚; 神田岳文; 大西和夫; 染谷隆夫; 田野俊一; 平田健太郎; 粕谷昌宏; 細田耕; 遠藤謙; 栗田雄一; 阿嘉倫大; 鈴木健一; 武田一哉; 河原英紀; 山岸順一; 梶本裕之; 大西公平; 廣瀬通孝; 鈴木健嗣; 藤井直敬; 北野宏明; 小林宏; 久野孝稔; 小西真; 金子真; 持丸正明; 桂誠一郎; 並木明夫; 久野孝稔; 山本圭治郎; 藤江正克; 下村義弘; 中村聡; 八木栄一; 林正彦; 篠原稔; 稲見昌彦
Scholarly book, Japanese, Joint work, 第1章 バイオメカニクス 第2節 歩行動作のモデル化とその加齢効果・改善策, エヌ・ティー・エス, 17 Jan. 2018 - 大学生のための「健康」論: 健康・運動・スポーツの基礎知識
長澤純一; 鶴ヶ野しのぶ; 田中健滋; 岡田英孝; 狩野豊; 安藤創一; 深澤浩洋; 大河原一憲; 黒谷佳代
Textbook, Japanese, Joint work, 第4章（体力論）, 道和書院, 10 Mar. 2016, 9784810521320 - スポーツバイオメカニクス
宮西, 智久; 岡田, 英孝; 藤井, 範久
Japanese, Joint work, 第3章（並進運動のキネマティクス），第5章（並進運動のキネティクス），第7章（仕事，エネルギー，パワー）, x, 226p, 化学同人, Feb. 2016, 9784759817065 - 身体運動のバイオメカニクス研究法
阿江道良; 宮西智久; 榎本靖士; 岡田英孝; 川上泰雄; 木塚朝博; 藤井範久; 森丘保典
Japanese, Joint translation, 第3章 身体部分慣性係数，第5章 ２次元逆動力学，付録A-E, 大修館書店, 2008 - 運動器の機能向上のための介護予防実践マニュアル
赤間高雄; 鰺坂隆一; 阿部絢子; 石津政雄; 烏帽子田彰; 岡田英孝; 落合直之; 加賀谷淳子; 金岡恒治; 神山吉樹; 川口毅; 木村文律; 久野譜也; 河野一郎; 児玉 暁; 坂戸洋子; 柴田 博; 清水和弘; 淑淼; 曽根博仁; 田中喜代次; 田中宏暁; 田辺 解; 西嶋尚彦; 沼尾成晴; 橋本佐由里; 半谷美夏; 福永哲夫; 増田和実; 松田光生; 宗像恒次; 村上和雄; 村上晴香; 薮下典子
Japanese, Joint work, 第4章 3.老化と歩行能力, 社会保険研究所, 2007 - オックスフォードスポーツ医科学辞典
赤間高雄; 秋本崇之; 安部孝; 石川旦; 伊藤雅充; 上岡はつみ; 岡田英孝; 柿崎裕彦; 柿山哲治; 金久博昭; 狩野豊; 川上泰雄; 北城圭一; 工藤和俊; 久野譜也; 小堀かおる; 佐藤広徳; 沢井史穂; 篠原 稔; 下條仁士; 相馬りか; 征矢英昭; 高橋英幸; 新名謙二; 西嶋尚彦; 平工志穂; 深代千之; 福田理香; 福場良之; 船渡和男; 星川佳広; 本間三和子; 政二 慶; 三木ひろみ; 向井直樹; 吉田 茂; 和久貴洋; 渡會公治
Japanese, Joint translation, 朝倉書店, 2006 - 許容限界ハンドブック
清水 豊; 篠原正美; 福本一朗; 中村 整; 村田芳博; 藤原勝夫; 山崎昌廣; 水戸和幸; 井上 馨; 今村裕行; 菅 智美; 鷹股 亮; 村木里志; 西原京子; 堀 忠雄; 長谷川博; 田中英登; 稲水 惇; 深堀能立; 中村純一; 金子賢一; 和気典二; 和気洋美; 森田和元; 坂田省吾; 磯 博行; 岩永 誠; 嶋田洋徳; 林 春男; 山本昌輝; 佐々木司; 七木田敦; 小谷泰則; 真家和生; 田中伸明; 関矢寛史; 藤田智香子; 板場英行; 岩崎 洋; 加藤祝也; 小宮山伴与志; 北本 拓; 山本正嘉; 狩野 豊; 大山下圭悟; 黒川隆志; 関 邦博; 米沢和洋; 後藤真二; 田島 誠; 和田正信; 田中喜代次; 中垣内真樹; 林 容市; 岡田英孝; 高木昭輝; 生田宗博; 鈴木隆雄; 植木章三; 板倉直明; 白倉良太; 若山照彦; 片岡洵子; 中谷康司; 有田秀穂; 田原靖昭; 西原克成; 勝浦哲夫; 坂本和義; 高野倉雅人; 山崎和彦; 岡田 明; 高崎裕治; 開口千春; 岩宮眞一郎; 高田正幸; 垣鍔 直; 岩田三千子; 川島美勝; 山崎 岳; 眞野喜洋; 小城勝相
Japanese, Joint work, Ⅲ.運動 23．エンジュランストレーニング, 朝倉書店, 2005 - 健康論（改訂版）
大鋸順; 坂口明; 田中健滋; 長澤純一; 岡田英孝; 狩野豊; 深澤浩洋; 柳澤久; 吉川和利
Japanese, Joint work, 第5章 体力論, 道和書院, 2004 - スポーツバイオメカニクス
深代千之; 政二 慶; 伊藤 章; 杉田正明; 松尾彰文; 藤原素子; 飯干 明; 高松潤二; 伊藤信之; 桜井伸二; 若山章信; 平野裕一; 友末亮三; 川島一明; 磯川正教; 池上康男; 若吉浩二; 小林 規; 石毛勇介; 結城匡啓; 古岡伸彦; 岡田英孝; 山本利春; 藤井範久; 阿江通良; 淵本隆文; 中澤公孝; 川上泰雄; 浅井 武; 寺島 徹
Textbook, Japanese, Joint work, 第Ⅰ編第2章第2節 加齢のバイオメカニクス, 朝倉書店, 2000, 9784759817065
Lectures, oral presentations, etc.
- 下肢筋のキネティクスが加齢にともなうステップ長低下におよぼす影響
志村蒼; 岡田英孝
Oral presentation, 第44回バイオメカニズム学術講演会（SOBIM2023）
25 Nov. 2023
25 Nov. 2023- 25 Nov. 2023 - 加齢にともなう歩行中のステップ長低下原因の検討
志村蒼; 岡田英孝
Oral presentation, Japanese, 第43回バイオメカニズム学術講演会（SOBIM2022）
26 Nov. 2022
26 Nov. 2022- 27 Nov. 2022 - 部分的最小二乗回帰を用いた歩行動作の加齢度評価方法の検討
下田海; 岡田英孝
Oral presentation, Japanese, 第43回バイオメカニズム学術講演会（SOBIM2022）, Peer-reviewed
26 Nov. 2022
26 Nov. 2022- 27 Nov. 2022 - 機械学習を用いた歩行中の下肢関節キネティクスの推定
大西陽一; 岡田英孝
Oral presentation, Japanese, 第42回バイオメカニズム学術講演会（SOBIM2021）, バイオメカニズム学会, 香川大学（オンライン）, Domestic conference
28 Nov. 2021 - 自動骨格認識を用いた歩行動作計測システムの精度検証
櫻井隆; 岡田英孝
Oral presentation, Japanese, 第42回バイオメカニズム学術講演会（SOBIM2021）, バイオメカニズム学会, 香川大学（オンライン）, Domestic conference
27 Nov. 2021 - 異なる計算方法による歩行時の仕事の比較
下田海; 岡田英孝
Oral presentation, Japanese, 第42回バイオメカニズム学術講演会（SOBIM2021）, バイオメカニズム学会, 香川大学（オンライン）, Domestic conference
27 Nov. 2021 - EXAMINATION OF AN APPLICABLE RANGE FOR A MARKERLESS MOTION CAPTURE SYSTEM IN GAIT ANALYSIS
Sakurai T; Okada H
Poster presentation, English, The 39th International Conference on Biomechanics in Sports, International Society of Biomechanics in Sports, Online (Canberra, Australia), Peer-reviewed, International conference
04 Sep. 2021 - ロジスティック回帰モデルによる歩行の接地および離地判別方法の検討
大西陽一; 岡田英孝
Oral presentation, Japanese, 第41回バイオメカニズム学術講演会, バイオメカニズム学会, 東海大学湘南キャンパス（Online）, Domestic conference
06 Dec. 2020 - TOF カメラを用いたマーカーレス歩行動作計測システムの適用範囲の検討
櫻井隆; 岡田英孝
Oral presentation, Japanese, 第41回バイオメカニズム学術講演会, バイオメカニズム学会, 東海大学湘南キャンパス（Online）, Domestic conference
06 Dec. 2020 - Accuracy verification of a markerless gait motion capture system using TOF camera
Sakurai, T; Okada, H
Poster presentation, English, The 2020 Yokohama Sport Conference, Japan Society of Physical Education, Health and Sport Sciences (JSPEHSS), Japan Academic Alliance for Sport, Physical Education, and Health Sciences (JAASPEHS) and others, online, International conference
08 Sep. 2020 - Determination of heel strike and toe-off timing during gait using kinematic data by a logistic regression model
Onishi, Y; Okada, H
Poster presentation, English, The 2020 Yokohama Sport Conference, Japan Society of Physical Education, Health and Sport Sciences (JSPEHSS), Japan Academic Alliance for Sport, Physical Education, and Health Sciences (JAASPEHS) and others, online, International conference
08 Sep. 2020 - 走速度および走能力が長距離ランナーの走動作に及ぼす影響
池山克行; 田頭森治; 岡田英孝; 広瀬泰輔; 西出仁明; 山田洋; 両角速
Oral presentation, Japanese, 第40回バイオメカニズム学術講演会, バイオメカニズム学会, 中部大学春日井キャンパス, Domestic conference
01 Dec. 2019 - インステップキックにおける下肢セグメント間のエナジーフロー解析
坪井良紀; 川合健介; 岡田英孝
Oral presentation, Japanese, 第40回バイオメカニズム学術講演会, バイオメカニズム学会, 中部大学春日井キャンパス, Domestic conference
30 Nov. 2019 - Energy flow analysis between lower limb segments during the instep kick in soccer
Tsuboi, Y; Okada, H
Poster presentation, English, The XXVIIth Congress of the International Society of Biomechanics, International Society of Biomechanics, Calgary, Canada, International conference
02 Aug. 2019 - 映像を用いた身体運動の解析
岡田英孝
Invited oral presentation, Japanese, 映像情報メディア学会 メディア工学研究会/スポーツ情報処理時限研究会, Invited, 映像情報メディア学会 メディア工学研究会/スポーツ情報処理時限研究会, 電気通信大学, Domestic conference
17 Dec. 2018 - ランニングの余裕度評価に関する動作学的研究
池山克行; 廣田幹太; 岡田英孝
Oral presentation, Japanese, 第39回バイオメカニズム学術講演会, バイオメカニズム学会, Domestic conference
11 Nov. 2018 - サッカーのインステップキックにおける下肢の3次元動作解析
坪井良紀; 岡田英孝
Oral presentation, Japanese, 第39回バイオメカニズム学術講演会, バイオメカニズム学会, Domestic conference
10 Nov. 2018 - 医療・ヘルスケア サブタイトル：～地方自治体との連携～
Public symposium, Japanese, イノベーション・ジャパン2018, 科学技術振興機構（JST）、新エネルギー・産業技術総合開発機構（NEDO）, 東京国際展示場（東京）
30 Aug. 2018 - ランニングエコノミーと下肢動作，下肢筋活動
岡田英孝
Nominated symposium, Japanese, 第30回ランニング学会大会, Invited, ランニング学会, 筑波大学, 丹治史弥，岡田英孝，大後栄治，西出仁明，学会プロジェクトⅡ「ランニングエコノミーと長距離走パフォーマンス」, Domestic conference
31 Mar. 2018 - 慣性センサを用いた歩行動作学習システムの開発
西村友宏; 山岸大騎; 岡田英孝
Oral presentation, Japanese, 第38回バイオメカニズム学術講演会, バイオメカニズム学会, Domestic conference
04 Nov. 2017 - 歩行中の地面反力成分が足関節トルクに及ぼす影響
西村友宏; 新津貴也; 岡田英孝
Oral presentation, Japanese, 第37回バイオメカニズム学術講演会, バイオメカニズム学会, Domestic conference
12 Nov. 2016 - 加齢が歩行動作の変動に及ぼす影響
杉本拓也; 岡田英孝
Oral presentation, Japanese, 第37回バイオメカニズム学術講演会, バイオメカニズム学会, Domestic conference
12 Nov. 2016 - 下肢の動作および筋活動がランニングエコノミーに及ぼす影響
岡田英孝; 栗田崇平
Poster presentation, Japanese, 第24回日本バイオメカニクス学会大会プログラム, 日本バイオメカニクス学会, 立命館大学びわこ・くさつキャンパス, Domestic conference
14 Sep. 2016 - EXAMINATION OF A METHOD FOR DETECTION OF WALKING HEEL STRIKE AND TOE-OFFOVER A WIDE RANGE OF SPEEDS
Takuya Sugimoto; Hidetaka Okada
Poster presentation, English, The 34th International Conference on Biomechanics in Sports, International Society of Biomechanics in Sports, Tsukuba, Japan, International conference
22 Jul. 2016 - THREE-DIMENSIONAL MOTION ANALYSIS OF THE “TENKAN-TECHNIQUE IN AIKIDO
Kazutoshi Kikkawa; Hidetaka Okada; Hikaru Kuratomi
Poster presentation, English, The 34th International Conference on Biomechanics in Sports, International Society of Biomechanics in Sports, Tsukuba, Japan, International conference
20 Jul. 2016 - DETECTION OF FOOT CONTACT AND TOE-OFF USING KINEMATIC DATA FOR TREADMILL RUNNING OVER A WIDE RANGE OF SPEEDS
Hidetaka OKADA; Shuhei KURITA; Shogo YABIKU
Poster presentation, English, The 34th International Conference on Biomechanics in Sports, International Society of Biomechanics in Sports, Tsukuba, Japan, International conference
19 Jul. 2016 - COMPARISON IN LOWER LIMB KINEMATICS AFFECTING RUNNING ECONOMY OF TRAINED AND UNTRAINED RUNNERS
Shusuke Hatakeyama; Shuhei Kurita; Akira Shiihara; Hidetaka Okada
Poster presentation, English, The 34th International Conference on Biomechanics in Sports, International Society of Biomechanics in Sports, Tsukuba, Japan, International conference
19 Jul. 2016 - 神経筋骨格モデルを用いた歩行加齢特性の評価
長谷和徳; 関口眞夢; 岡田英孝; 渡辺良信; 柴田翔平; 岡本英也; 石田和也
Oral presentation, Japanese, The 57th Conference of Japan Ergonomics Society, 日本人間工学会, 三重県立看護大学（三重県津市）, Domestic conference
25 Jun. 2016 - 歩行動作の評価・学習システム - 健康長寿をアシストする -
岡田英孝
Oral presentation, Japanese, 電気通信大学 新技術説明会, 科学技術振興機構、電気通信大学, JST東京本部別館1Fホール（東京・市ケ谷）, 身体諸機能の加齢変化にともない歩行動作も加齢にともなって変化する。本手法は歩行中の姿勢や力・パワー発揮の標準的な加齢変化に基づき、歩行動作の加齢度を評価するものである。また、歩行動作をリアルタイムにフィードバックすることで歩行動作の学習も可能とする。
17 May 2016 - 合気道の基本動作に関するバイオメカニクス的研究
倉富燿; 栗田崇平; 吉川和利; 岡田英孝
Oral presentation, Japanese, 第36回バイオメカニズム学術講演会（SOBIM2015）予稿集, バイオメカニズム学会, 信州大学（上田市）, Domestic conference
29 Nov. 2015 - ランニングエコノミーに影響を及ぼす生体力学的要因
畠山漱介; 栗田崇平; 椎原彬; 岡田英孝
Oral presentation, Japanese, 第36回バイオメカニズム学術講演会（SOBIM2015）予稿集, バイオメカニズム学会, 信州大学（上田市）, Domestic conference
29 Nov. 2015 - 走速度の増加に伴う下肢筋活動の変化とランニングエコノミーとの関係
栗田崇平; 岡田英孝
Oral presentation, Japanese, 第36回バイオメカニズム学術講演会（SOBIM2015）予稿集, バイオメカニズム学会, 信州大学（上田市）, Domestic conference
29 Nov. 2015 - ストライド特性からみた歩行の加齢度評価の試み
脇山楓; 岡田英孝
Oral presentation, Japanese, 第36回バイオメカニズム学術講演会（SOBIM2015）予稿集, バイオメカニズム学会, 信州大学（上田市）, Domestic conference
28 Nov. 2015 - 慣性センサを用いた簡便なストライド特性検出方法の検討
山岸大騎; 般若麗沙; 岡田英孝
Oral presentation, Japanese, 第36回バイオメカニズム学術講演会（SOBIM2015）予稿集, バイオメカニズム学会, 信州大学（上田市）, Domestic conference
28 Nov. 2015 - 広範囲の歩行速度に適応可能な接地及び離地の検出方法の検討
杉本拓也; 上田翔大; 岡田英孝
Oral presentation, Japanese, 第36回バイオメカニズム学術講演会（SOBIM2015）予稿集, バイオメカニズム学会, 信州大学（上田市）, Domestic conference
28 Nov. 2015 - トレッドミル上のランニングにおける接地および離地の検出方法の検討
栗田崇平; 新井駿; 屋比久将吾; 岡田英孝
Oral presentation, Japanese, 第35回バイオメカニズム学術講演会（SOBIM2014）予稿集, バイオメカニズム学会, 岡山大学（岡山市）, Domestic conference
09 Nov. 2014 - 成人女性の歩行における下肢キネティクスと筋力の関係
江藤主樹; 般若麗沙; 岡田英孝
Oral presentation, Japanese, 第35回バイオメカニズム学術講演会（SOBIM2014）予稿集, バイオメカニズム学会, 岡山大学（岡山市）, Domestic conference
08 Nov. 2014 - 標準動作モデルを用いた成人女性の歩行動作の加齢度評価の試み
岡田英孝; 江藤主樹
Oral presentation, Japanese, 第23回日本バイオメカニクス学会大会, 日本バイオメカニクス学会, 東京, Domestic conference
13 Sep. 2014 - 身体部分慣性特性が走効率におよぼす影響
横澤俊治; 平山大作; 高木斗希夫; 岡田英孝
Oral presentation, Japanese, 第26回ランニング学会大会, 大阪体育大学（泉南郡）
22 Mar. 2014 - 日本人トップアスリートの身体部分慣性特性～性差および種目間の差～
岡田英孝
Oral presentation, Japanese, 第159回日本体力医学会関東地方会, Domestic conference
07 Dec. 2013 - MRI画像を用いた身体部分密度推定方法の検討
岡田英孝; 小齊智泰; 小田部一樹; 吉川和利; 横澤俊治
Oral presentation, Japanese, 第34回バイオメカニズム学術講演会（SOBIM2013）予稿集, バイオメカニズム学会, 国立障害者リハビリテーションセンター（所沢市）, Domestic conference
16 Nov. 2013 - 成人女性の加齢に伴う歩行動作の変容に関する研究～歩行速度の影響を考慮して～
江藤主樹; 大石竜我; 吉川和利; 岡田英孝
Oral presentation, Japanese, 第34回バイオメカニズム学術講演会（SOBIM2013）予稿集, バイオメカニズム学会, 国立障害者リハビリテーションセンター（所沢市）, Domestic conference
16 Nov. 2013 - 若年者を基準とした男女高齢者の歩行動作評価の試み
伊藤文人; 大石竜我; 中原康輔; 吉川和利; 岡田; 英孝
Oral presentation, Japanese, 第33回バイオメカニズム学術講演会予稿集,第33回バイオメカニズム学術講演会
Dec. 2012 - 3次元CADを用いたアスリートの身体部分慣性係数の算出
辻村諒太; 小齊智泰; 横澤俊治; 吉川和利; 岡田; 英孝
Oral presentation, Japanese, 第33回バイオメカニズム学術講演会予稿集,第33回バイオメカニズム学術講演会
Dec. 2012 - 長時間走行中の下肢筋活動変化に関する研究
林健太郎; 長名シオン; 吉川和利; 岡田英孝
Oral presentation, Japanese, 第33回バイオメカニズム学術講演会予稿集,第33回バイオメカニズム学術講演会
Dec. 2012 - プロジェクト研究に関する検討と提案（日本体力医学会理事会企画シンポジウム「これからの日本体力医学会の発展を目指して—将来構想検討委員会報告」）
宮西智久; 森丘保典; 岡田英孝; 図子浩二
Public symposium, Japanese, 第67回日本体力医学会大会予稿集, 日本体力医学会, 岐阜市
Sep. 2012 - プロジェクト研究に関する検討と提案（日本体力医学会理事会企画シンポジウム「これからの日本体力医学会の発展を目指して—将来構想検討委員会報告」）
宮西智久; 森丘保典; 岡田英孝; 図子浩二
Public symposium, Japanese, 第67回日本体力医学会大会予稿集, 日本体力医学会, 岐阜市
Sep. 2012 - キネマティクスモデルを用いた加齢にともなう歩行速度変化の要因分析
岡田英孝
Oral presentation, Japanese, 第22回日本バイオメカニクス学会大会論集,第22回日本バイオメカニクス学会大会
Sep. 2012 - 長距離選手の地面反力の特徴
榎本, 靖士; 横澤, 俊治; 岡田, 英孝; 鈴木, 雄太
Japanese, 日本体育学会大会予稿集, Japanese Society of Physical Education, Health and Sport Sciences
Aug. 2012
Aug. 2012 Aug. 2012 - 05バ-24-口-11 長距離選手の地面反力の特徴(バイオメカニクス,口頭発表,一般研究発表抄録)
榎本 靖士; 横澤 俊治; 岡田 英孝; 鈴木 雄太
Japanese, 日本体育学会大会予稿集, 一般社団法人 日本体育学会, http://ci.nii.ac.jp/naid/110009607930
2012
2012 2012 - 若年者を基準とした高齢者の歩行動作評価方法の提案 ―キネティクス変数に基づく評価―
伊藤文人; 森崇; 菅原麻未; 吉川和利; 岡田英孝
Oral presentation, Japanese, 第32回バイオメカニズム学術講演会（SOBIM 2011）予稿集
Nov. 2011 - 歩行動作フィードバックシステムの開発と評価
横瀬真; 岡田英孝; 吉川和利
Oral presentation, Japanese, 第32回バイオメカニズム学術講演会（SOBIM 2011）予稿集
Nov. 2011 - 一流投手の投球における体幹動作の三次元解析 ―プロ野球一流投手の事例的研究―
林健太郎; 加藤康明; 中垣征一郎; 吉川和利; 岡田英孝
Oral presentation, Japanese, 第32回バイオメカニズム学術講演会（SOBIM 2011）予稿集
Nov. 2011 - 核磁気共鳴映像法を用いた身体部分密度推定の試み
辻村諒太; 横澤俊治; 吉川和利; 岡田英孝
Oral presentation, Japanese, 第32回バイオメカニズム学術講演会（SOBIM 2011）予稿集
Nov. 2011 - ケニア人長距離走選手の走行時における下肢筋パワーの特徴
横澤俊治; 榎本靖士; 高松潤二; 岡田英孝; 渋谷俊浩
Oral presentation, Japanese, 日本体育学会第62回大会予稿集,日本体育学会第62回大会
Sep. 2011 - In vivo time-resolved measurement and tomographic image reconstruction of human forearm under exercises
Tanikawa, Y; Gao, F; Miyakawa, M; Kiryu, T; Kizuka, T; Okada, H; Endo, Y; Okawa, S; Yamada, Y
Oral presentation, English, 第50回日本生体医工学会大会プログラム・論文集（CD−ROM）,第50回日本生体医工学会大会
Apr. 2011 - 05バ-27-ポ-63 ケニア人長距離走選手の走行時における下肢筋パワーの特徴(05.バイオメカニクス,一般研究発表抄録)
横澤 俊治; 榎本 靖士; 高松 潤二; 岡田 英孝; 渋谷 俊浩
Japanese, 日本体育学会大会予稿集, 一般社団法人 日本体育学会, http://ci.nii.ac.jp/naid/110009438448
2011
2011 2011 - 日常的環境下における長時間計測を目的とした下肢動作計測システムの開発 (第31回バイオメカニズム学術講演会 SOBIM2010 予稿集)
横瀬 真; 岡田 英孝; 吉川 和利
Japanese, バイオメカニズム学術講演会予稿集, バイオメカニズム学会, http://id.ndl.go.jp/bib/10907182
06 Nov. 2010
06 Nov. 2010- 06 Nov. 2010 - 光学式3次元人体形状計測装置および3次元CADソフトを用いた身体部分慣性係数の算出
阿部 敏之; 横澤 俊治; 高松 潤二; 岡田 英孝
Japanese, バイオメカニズム学術講演会予稿集, バイオメカニズム学会
Nov. 2009
Nov. 2009 Nov. 2009 - 身体部分慣性特性が走動作に及ぼす影響--日本人およびケニア人一流長距離ランナーの比較 (第21回ランニング学会大会・一般研究発表抄録)
岡田 英孝; 阿部 敏之; 榎本 靖士
Japanese, ランニング学研究, ランニング学会, http://id.ndl.go.jp/bib/10996285
Jun. 2009
Jun. 2009 Jun. 2009 - 中高年者の下肢筋量と歩行中の下肢キネティクスの関係 - SATプロジェクト186‐
岡田英孝; 金久博昭; 竹下香寿美; 福永哲夫; 久野譜也; 阿江通良
Oral presentation, Japanese, 日本体育学会,日本体育学会第56回大会
Nov. 2005 - 前期および後期高齢者の歩行における下肢のキネティクス
岡田英孝
Oral presentation, Japanese, 第18回日本バイオメカニクス学会大会抄録集, 鹿屋市
2004 - 前期および後期高齢者の歩行における下肢のキネティクス
岡田英孝
Oral presentation, Japanese, 第18回日本バイオメカニクス学会大会抄録集, 第18回日本バイオメカニクス学会大会抄録集, 鹿屋市, Domestic conference
2004 - 幼児の疾走におけるストライド特性と疾走動作の発達
岡田英孝
Oral presentation, Japanese, 第16回ランニング学会大会抄録集, つくば市
2004 - 前期および後期高齢者の歩行におけるストライド様式の加齢変化‐SATプロジェクト165‐
岡田英孝; 川辺善郎; 久野譜也; 阿江通良
Oral presentation, Japanese, 第18回日本バイオメカニクス学会大会抄録集, 鹿屋市
2004 - 前期および後期高齢者の歩行における下肢関節の力学的仕事‐SATプロジェクト166‐
岡田英孝; 久野譜也; 松田光生; 阿江通良
Oral presentation, Japanese, 日本体育学会第55回大会号, 長野市
2004 - 踏み台昇降運動時の膝関節トルク
綾部誠也; 岡田英孝; 森由香梨; 清永明; 進藤宗洋; 田中宏暁
Oral presentation, Japanese, 第12回運動生理学会大会抄録集, 佐倉市
2004 - 可変弾性機構を有するスマートスーツ(第2 報，歩行動作における可変弾性機構の有効性
林俊映; 田中孝之; 岡田英孝; Maria Q. Fenn
Oral presentation, Japanese, 第5回計測自動制御学会システムインテグレーション部門講演会抄録集, つくば市
2004 - 歩行における力学的エネルギー
岡田英孝
Oral presentation, Japanese, 第6回日本ウォーキング学会大会抄録集
May 2002 - 歩行における力学的エネルギー
岡田英孝
Invited oral presentation, Japanese, 第6回日本ウォーキング学会大会, 第6回日本ウォーキング学会大会抄録集, Domestic conference
May 2002 - 高齢者の移動における力学的エネルギー利用の有効性
岡田英孝; 阿江通良
Oral presentation, Japanese, 日本バイオメカニクス学会特別大会, 東京大学
Oct. 1999 - バイオメカニクス的視点からみた高齢者のlocomotionの特徴
岡田英孝; 阿江通良
Invited oral presentation, Japanese, 日本体育学会第50回記念大会, 日本体育学会第50回記念大会共催シンポジウム「高齢者の健康･運動」，東京大学 (invited), Domestic conference
Oct. 1999 - 高齢者のまたぎ越し動作に関するバイオメカニクス的研究
阿江通良; 尾碕哲郎; 岡田英孝; 藤井範久
Oral presentation, Japanese, 日本体育学会第49回大会，松山市
Oct. 1998 - 傾斜面での伸張-短縮サイクル運動における腓腹筋のstiffness特性- パワー系競技者と一般健常者の比較-
尹聖鎮; 岡田英孝; 藤井範久; 高松 薫
Oral presentation, Japanese, 第53回日本体力医学会大会，横浜市
Sep. 1998 - 高齢者の歩行中の転倒に関するバイオメカニクス的研究
阿江通良; 藤井範久; 岡田英孝
Others, Japanese, 平成8年度～9年度科学研究費補助金基礎研究（C）（課題番号08680090：研究代表者 阿江通良）研究成果報告書
1998 - The first step toward sport biomechanics of the elderly: Changes in running kinematics for the master's distance runners with aging
Ae, M; Okada, H; Ooki, S
Invited oral presentation, English, The‘94 International Sport Science Congress, Seoul, Korea, International conference
1994
Courses
- 人間の生活とICT
東京慈恵会医科大学 - 学域特別講義B（学研ホールディングス寄附講義）「学研の実例に学ぶビジネスマーケティング論」
電気通信大学 - 生涯スポーツ演習A（3年生以上）
The University of Electro-Communications - 生涯スポーツ演習A（3年生以上）
電気通信大学 - 健康・体力つくり実習（7・8クラス）
電気通信大学 - 健康論（7・8クラス）
電気通信大学 - 健康・体力つくり実習（11・12クラス）
電気通信大学 - 健康論（11・12クラス）
電気通信大学 - 生涯スポーツ演習B
The University of Electro-Communications - 生涯スポーツ演習B
電気通信大学 - 健康・体力つくり実習
電気通信大学 - 生涯スポーツ演習A
電気通信大学 - 生涯スポーツ演習D（スキー集中）
電気通信大学 - 健康論
電気通信大学 - 健康実践論 （運動実践を含めた健康体力科学）
電気通信大学 - 身体運動のバイオメカニクス
電気通信大学 - バイオメカニクス基礎
電気通信大学