小宮山, 伴与志

村松, 成司

KOMIYAMA, Tomoyoshi

MURAMATSU, Shigeji

[ABSTRACT] This study investigated the effects of a new training method that was developed recently and termed "self resistance training (SRT)". SRT consists of an isokinetic-like contraction produced by lateral elbow movement. The opposite direction of force exerted by contralateral elbow movement was used for training resistance. Six volunteers (21-24 yrs.) engaged in the training program 7 times a week for 4 weeks. A training session consisted of 3 sets of 5 maximal voluntary elbow flexion-extensions. Before and after a 4-week training period, changes in maximal voluntary contractions (MVC) at 30, 60, 90 and 120 degrees of elbow flexion and extension and anthropometric measurements (the circumference and skinfold thickness of the upper arm) were performed in both the dominant and nondominant arm. After a 4-week training period, the flexion and extension MVC significantly increased. Further, in partly, MVC of untrained flexion and extension also significantly improved. However, there were no anthropometric changes. It was concluded that this training method, the SRT, was sufficiently effective to improve strength in the upper arm and this improvement could be attributed to neuromuscular adaptation.