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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국운동생리학회 운동과학 운동과학 제24권 제3호
발행연도
2015.1
수록면
267 - 274 (8page)

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PURPOSE: The present study was designed to evaluate the effects of different resistance protocols on muscle mass and function in rats. METHODS: Thirty two Sprague-Dawley female rats, 8 weeks of age, were randomly divided into 4 groups (n=8 each group): control (CON), resistance training 1 (RT1; 6 to 8 reps/1 set, every 3rd day), resistance training 2 (RT2; 5 reps/3 sets, every other day), resistance training 3 (RT3; 5 reps/3 sets, twice a day, every 3rd day). Ladder climbing was used as the resistance training. RESULTS: Muscle mass and cross sectional area (CSA) of flexor hallucis longus (FHL) and extensor carpi radialis (ECR) were increased in all resistance training groups (p<.05). Grip strength was significantly increased in RT3 group (p<.05). Peak twitch tension (Pt) was increased in RT1 and RT3 group and peak tetanic tension (Po) was increased only in RT3 group (p<.05). There was no change of total protein concentration after training, however, myofibrillar protein contents were significantly increased in FHL and ECR muscles in all training groups. CONCLUSIONS: It is concluded that different resistance training protocol effectively induced the muscle hypertrophy by increasing myofibrillar protein contents. RT1, a low volume progressive single set resistance training protocol, is as effective as traditional high volume multi sets training protocol (RT2 and RT3) for increasing muscle strength in animal model.

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