筋力発揮の調節 : 1側の筋力発揮が反対側筋力発揮におよぼす効果について

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Effect of muscular expenditure in one hand to opposite muscular contraction has been studied by Sherrington and Hellebrandt. However, there are little studies about the effects of collaborative muscles and different muscular strengths to opposite muscular expenditure. This study was proceeded with three kinds of strength such as grip, supination and finger flexion, and also proceeded with those combined bouts of strength. Besides this was designed to estimate the interrelation of bilateral muscular strength by electromyogram (m. triceps brachii and m. extenser digitorum) and tension curves of each muscular strength. The obtained results are as follows : 1) Maximum muscular strength in one hand was brought to a little delayed burst discharge on opposite collaborative muscles and their burst amplitude was increased with the duration of maximum sustained contraction. 2) During the sustained grip strength of one hand, the opposite muscular expenditure made it decrease to be the discharge of m. extensor digitorum in grip hand, but that of m. triceps brachii did not. 3) During different sustained contraction of grip strength in one hand, finger flexion in opposite hand was rhythmically graded. In 20-24kg of sustained grip strength, electromyogram of m. extensor digitorum and tension curve of grip strength were synchronized with finger flexion. 4) A transient decrease of sustained grip strength was brought by finger flexion was some related to its rate of rising tension in finger flexion, especially in two third maximum grip strength. These results estimated that the effect of muscular expenditure in one hand to opposite muscular contraction was different in various collaborative muscles and muscular expenditures.
東海大学の論文

筋力発揮の調節 : 1側の筋力発揮が反対側筋力発揮におよぼす効果について

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