The relationship between jump performances and toe muscular strengths focus on the angles of metatarsophalengeal joint in athletes

Yasuhiro Yuasa; Toshiyuki Kurihara; Masaaki Tsumiyama; Shou Ozawa; Seiji Aruga; Takeshi Koyama; Tadao Isaka

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The relationship between jump performances and toe muscular strengths focus on the angles of metatarsophalengeal joint in athletes

VernacularTitle:アスリートにおける方向および様式の異なる跳躍能力と足趾筋力の関係 −足趾筋力発揮時の中足趾節関節角度に着目して−
Author: Yasuhiro YUASA ¹ ; Toshiyuki KURIHARA ² ; Masaaki TSUMIYAMA ³ ; Shou OZAWA ³ ; Seiji ARUGA ⁴ ; Takeshi KOYAMA ⁵ ; Tadao ISAKA ²
Author Information

1. Graduate School of Sports and Health Science, Ritsumeikan University
2. Department of Sport and Health Science, Ritsumeikan University
3. Department of Physical Education, Tokai University
4. Undergraduate School of Health Studies, Tokai University
5. Institute of Sports Medical Science, Tokai University
Keywords: toe muscular strength; metatarsophalangeal joint; repetitive hopping; repetitive rebound jump
From:Japanese Journal of Physical Fitness and Sports Medicine 2019;68(1):83-90
CountryJapan
Language:Japanese
Abstract: The purpose of this study was to investigate the relationship between toe muscular strengths and single and/or repetitive jump performances on different directions (vertical or horizontal) in athletes. Thirty two male collegiate students participated (athletes group n=24, control group n=8). Two types of measurements were performed to evaluate toe muscular strengths: toe pushing force (TPF) with the metatarsophalangeal joint (MPJ) at neutral position (0°) and the MPJ in the dorsiflexed position (45°). Jump performances were assessed by press jump (vertical jump and standing broad jump) that measures jumping height or distance, and rebound jump (rebound jump and repetitive hopping) that measures “RJ-index” (the jumping height divided by the contact time). Pearson correlation coefficients were used to determine the relationship between the toe muscular strengths and the performances of each jumping test. There were significant correlations between TPF with the MPJ in the dorsiflexed position and the performances of the repetitive hopping and rebound jump in athletes (P<0.05), but no significant correlations were found in controls. Also, there were no significant correlation between TPF and the performances of vertical jump and standing broad jump of all groups. These results suggest that, TPF in the dorsiflexed positions is one of the indicators that affect repetitive jump performance.