岡田研-研究

岡田研究室
OKADA Laboratory

Waseda University
Faculty of Sport Sciences

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研究分野

レジスタンストレーニングに関する基礎研究：
レジスタンストレーニングにおける生理学的・バイオメカニクス的指標の定量化

レジスタンストレーニングに関する応用研究：
ウエイトリフティングの力発揮特性
反応筋力と方向転換の関連性
レジスタンスエクササイズ時の力ー速度関係
Repetition-in-Reserveを現場への活用

コーチング研究：
スノーボード選手の競技力向上
ウエイトリフティング選手の育成

→学会発表写真はこちら←

主要測定項目・使用機器

筋力・パワー・力学的分析：
フォースプレート、リニアポジショントランスデューサー、マルチジャンプテスター、等速性筋力計（Biodex）、等尺性筋力計（VINE）、動作パワー測定装置（PowerProcessor）

筋活動：
表面筋電図

動作解析：
高速度カメラ、圧力盤

筋厚・筋断面積：
MRI、超音波診断装置

代謝系分析：
血中乳酸分析器

体組成・形態・体力測定：
Inbody、キャリパー、BODPOD、マルチン、組み立て式身長計、握力計、背筋計、ヤードスティック、スピードガン、GymAware

無酸素性パワー：
パワーマックスV

学術論文（更新中）

・Zhao,H., Kurokawa,T., Tajima,M., Liu,Z., Okada,J. Perceived exertion reflects fatigue conditions during power-aimed resistance training Int. J. Sports Med. (In press)
・Takei,S., Kambayashi,S., Katsuge,M. Okada,J., Hirayama,K. Portions of the force?velocity relationship targeted by weightlifting exercises. Sci. Rep. 14, 31021 (2024).
早稲田大学研究活動プレスリリース（日本語）
・Zhao,H., Kurokawa,T., Tajima,M., Liu,Z., Okada,J. Can Perceived Exertion and Velocity Loss Serve as Indirect Indicators of Muscle Fatigue During Explosive Back Squat Exercise? J. Funct. Morphol. Kinesiol. 2024, 9, 238.
早稲田大学スポーツ科学研究センター紹介ページ（日本語）
・Hakariya,N., Kibushi,B., Okada,J. Differences in muscle synergies between skilled and unskilled athletes in power clean exercise at various loads. J Sports Sci. (In press)
早稲田大学スポーツ科学研究センター紹介ページ（日本語）

・Zhao,H., Seo,D., Okada,J. Validity of using perceived exertion to assess muscle fatigue during bench press exercise. Isokinet Exerc Sci. (In press)

・Nishioka,T., Okada,J. Ballistic Exercise Versus Heavy Resistance Exercise Protocols: Which Resistance Priming Is More Effective for Improving Neuromuscular Performance on the Following Day? J Strength Cond Res. (In press)

・Zhao,H., Seo,D., Okada,J. Validity of using perceived exertion to assess muscle fatigue during back squat exercise. BMC Sports Science Medicine and Rehabilitation. 15(1), 2023.

・Nishioka,T., Okada,J. Associations of maximum and reactive strength indicators with force?velocity profiles obtained from squat jump and countermovement jump. PLoS ONE. 17(10):e0276681, 2022.

・Zhao,H., Nishioka,T., Okada,J. Validity of using perceived exertion to assess muscle fatigue during resistance exercises. PeerJ. 10: e13019, 2022.

・Nishioka,T., Okada,J. Influence of Strength Level on Performance Enhancement Using Resistance Priming. J Strength Cond Res. (In press)

・Takei,S., Hirayama,K., Okada,J. Comparison of the Power Output betweem the Hang Power Clean and Hang High Pull Across a Wide Rage of Loads in Weightlifter. J Strength Cond Res. (In press)

・Yamaguchi,S., Suzuki,K., Inami,T., Kanda,K., Okada,J. Changes in urinary titin N-terminal fragments as a biomarker of exercise-induced muscle damage in the repeated bout effect. J Sports Sci Med. 23(6): 536–540

・Yamaguchi,S., Suzuki,K., Inami,T., Kanda,K., Zhao,H., Okada,J. Changes in Urinary Titin N-terminal Fragment Concentration after Concentric and Eccentric Exercise. J Sci Med Sport.19: 121 - 129, 2020.

・Yamaguchi,S., Suzuki,K., Inami,T., Kanda,K., Okada,J. N-terminal fragments of titin in urine as a biomarker for eccentric exercise-induced muscle damage. J Phys Fitness Sports Med.9-1: 21-29, 2020

・Zhao,H., Yamaguchi,S., Okada,J. Effects of rest interval array on the training volume, perceived exertion, neuromuscular fatigue and metabolic responses during agonist-antagonist muscular alternative training. J Sports Med Phys Fitness. 04:536‐543, 2020

・Takei,S., Hirayama,K., Okada,J. Is the Optimal Load for Maximal Power Output During Hang Power Cleans Submaximal? Int J Sports Physiol Performance. 15: 18-24, 2020

・Sekine,Y., Okada,J. Effects of Resisted Sprint Training on Sprint Performance in High School Baseball Players. American Journal of Sports Science. 4(5): 90-97, 2016

・Sugisaki,N., Okada,J., Kanehisa,H. Difference in the Recruitment of Hip and Knee Muscles between Back Squat and Plyometric Squat Jump. PLoS ONE. 9(6): e101203, 2014

・Okada,J. Relationships between one repetition maximum and the specific movement power of the snatch and the squat in Olympic weightlifters(in Japanese). Sport Science Research. 10: 151-163, 2013

・Okada,J., Yanagiya,T., Kuramochi,R., Torii,S. Effects of heavy resistance training on bone mineral density, muscle strength and cross-sectional area in Master's weightlifters(in Japanese). Sport Science Research. 10: 49-61, 2013
・Sugisaki,N., Kurokawa,S., Okada,J., Kanehisa,H. Intensity-level assessment of lower body plyometric exercises based on mechanical output of lower limb joints. J Sports Sci. 31(8): 894-906, 2013

・Sugisaki,N., Kanehisa,H., Tauchi,K., Okazaki,S., Iso,S., Okada,J. The Relationship between 30-m Sprint Running Time and Muscle Cross-sectional Areas of the Psoas Major and Lower Limb Muscles in Male College Short and Middle Distance Runners. Int J Sport Health Sci. 9: 1-7, 2011

・Ikebukuro,T., Kubo,K., Okada,J., Yata,H., Tsunoda,N. The relationship between muscle thickness in the lower limbs and competition performance in weightlifters and sprinters(in Japanese). Jpn J Phys Fitness Sports Med. 60: 401-411, 2011

・Handa,T., Kato,H., Hasegawa,S., Okada,J. Electromyographic investigation of the upper and lower rectus abdominis, external abdominal oblique, and rectus femoris muscles in seven traditional abdominal exercises(in Japanese). Japan J Phys Edu Hlth Sport Sci. 54: 43-54, 2009

・Handa,T., Kato,H., Hasegawa,S., Okada,J. Electromyographic investigation of the pectoralis major, serratus anterior and deltoid muscles during three bench press exercises(in Japanese). Sport Science Research. 5: 58-70, 2008

・Okada,J., Iijima,K., Fukunaga,T., Kikuchi,T., Kato,T. Kinematic Analysis of the Snatch Technique used by Japanese and International Female Weightlifters at the 2006 Junior World Championship. International Journal of Sport and Health Science. 6: 194-202, 2008

・Handa,T., Kato,H., Hasegawa,S., Okada,J. Electromyographic investigation of the gastrocnemius and soleus muscles in calf raise exercises(in Japanese). Sport Science Research. 4: 63-174, 2007

・Handa,T., Kato,H., Hasegawa,S., Okada,J. Comparative electromyographical investigation of the biceps brachii, latissimus doris, and trapezius muscles during five pull exercises(in Japanese). Jpn J Phys Fitness Sports Med. 54: 159-168, 2005

・Okada,J. A study on the relationship between activity in middle aged and elderly men and their collegiate athletic career(in Japanese). The Annual Report of Physical Education(Waseda University). 35: 25-35, 2003

・Okada,J. Physical fitness level and its changes estimated the continued control-test in college athletes(in Japanese). The Annual Report of Physical Education(Waseda University). 34: 25-35, 2002

・Okada,J., Fukashiro,S. Effects of resistance training associated with stretch shortening cycle exercise on force development and muscle volume in human elbow flexsors. Advances in Exercise and Sports Physiology. 7: 65-71, 2001

・Isaka,T., Okada,J., Funato,K. Kinematic Analysis of the Barbell during the Snatch Movement of Elite Asian Weight Lifters. J Appl Biomech. 12: 508-516, 1996

・Okada,J., Kaneko,K., Kato,K. Lefting technique of weightlifters in the snatch movement(in Japanese). Human Sci Res. 4: 129-140, 1995