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KMID : 0357219910030010075
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Journal of Korean Society Physical Therapy
1991 Volume.3 No. 1 p.75 ~ p.90
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Effects of Isokinetic Exercise on the Composition of Muscle Fibers in Rats Lower
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이용덕/Lee, Yong Deok
조현국/김한수/박윤기/서태수/Cho, Hyun Gug/Kim, Han Soo/Park, Youn Ki/Suh, Tae Soo
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Abstract
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This study is to characterize the effects of swimming exercise on the composition of muscle fibers in rats lower limb tissue. By comparing the exercised group (4, 8 weeks) with the control group, we analyzed the difference histologically, histochemically and morphometrically.
The obtained results are as follows
] , In the histological view, the distance between the individual muscle fibers and the muscle bundles in exercised group was shorter than that of control group. The irregular shape of sarcolemma in exercised group was observed.
2. In the histochemical view (NADH-TR. and. Myosin ATPase reaction analysis), the increased populations of red and.. Intermediate fibers were observed, whereas the white fiber was decreased.
3. In the morphometrical view, the red and intermediate fibers of -tibialis anterior and gastrocnemius in exercised group were quantitatively increased, compared with control group, However, the white fiber and connective tissue in exercised group were decreased.
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