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서종연(Seo Jong-Yeon),이광식(Lee Kwang-Sik),신호수(Shin Ho-Su) 한국체육과학회 2005 한국체육과학회지 Vol.14 No.2
The purpose of this study was to examine how unilateral muscular training affects the record improvement. Subjects were 14 female swimmers in middle school, they had 3 year career at least. The experimental group was composed of 7 swimmers who have trained unilateral muscular training in 8 weeks, and the control group was composed of 7 swimmers who have trained ordinary muscular training in 8 weeks. By investigating the change of muscular strength, the difference between right and left ratio of muscular strength, it was examined whether unilateral muscular training exercised a good effect on the record improvement. The results were as followed; First, after training in 8 weeks, the improvement of muscular strength was founded in both groups. For control group, the significant improvement was founded in right and left trunk, trunk extensor, push and pull muscular strength. For experimental group, the significant improvement was founded in right and left trunk, trunk flexor, push, and right and left leg, muscular strength. Second, after training in 8 weeks, the overall difference of ratio between right and left muscular strength was not significant. But the difference of ratio between right arid left muscular strength in trunk and leg was decreased. Third, after training in 8 weeks, both groups were improved in reducing record of 200m individual medley. The conclusion of the study was that if the difference of ratio between right and left muscular strength was decreased through muscular training, the record of swimming was improved.