著者

有賀 誠司 寺尾 保 恩田 哲也

出版者

東海大学

雑誌

東海大学スポーツ医科学雑誌 (ISSN:09153659)

巻号頁・発行日

vol.13, pp.24-33, 2001

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The purpose of the present study was to determine the effects of a resistance training program in triathletes. Eight healthy university competitive men's triatheletes who had no experience of the resistance training were assigned to either the resistance training group(TRAINING : N=4)or the regular training group(CONTROL : N=4). The resistance training program that Johnston et al.(1995)used for women long-distance runners was carried out three times a week, for ten weeks in TRAINING. Body weight, body fat, muscle cross-sectional area of thigh, squat 1RM, leg press power, isokinetic strength, and the incremental exercise using treadmill were examined before and after the training. At the same time, VO_2max and blood lactate concentration were also measured. The main results were as follows; 1) In regard to body weight, body fat, and muscle cross-sectional area of the thigh, no significant changes were found in either the TRAINING a CONTROL groups. 2) In the case of squat 1RM and leg press power, a significant increase was noted in the TRAINING group (p<0.01,p<0.05). There were no significant changes in isokinetic strength for either the TRAINING or CONTROL group. 3) There was no significant changes in VO_2max/BW in either groups. However, there was a significant increase in blood lactate concentration in the TRAINING group (p<0.05). 4) There was a positive correlation between the percentage change in leg press power/squat 1RM and in blood lactate concentration (p<0.05)in both groups. From these results we suggest that the resistance training program in triathletes was useful to improve the muscle strength and power without muscle hypertrophy, and to enhance during endurance high intensity exercise.