PHYSIOLOGICAL ALTERATIONS CONSEQUENT TO CIRCUIT WEIGHT TRAINING

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  • 1 January 1978
    • journal article
    • research article
    • Vol. 10  (2) , 79-84
Abstract
The efficacy of a 10-wk program of circuit weight training to elicit specific physiological alterations was evaluated in a group of 16 men and a group of 12 women with an additional group of 10 men and a group of 11 women serving as controls. The circuit consisted of 10 stations performed on a Universal Gym, 3 circuits/day (.apprx. 22.5 min/day), 3 days/wk. The subjects exercised at 40-55% of 1-RM [1-repetition maximum technique], executing as many repetitions as possible in 30 s on each of the lifts, followed by a 15 s rest as the subject moved to the next station. Following the training program, the experimental groups demonstrated significant increases in lean body weitht, flexed biceps girth, treadmill endurance time, .ovrhdot.VEmax [maximal ventilation] (women only), .ovrhdot.VO2 max [maximal O2 uptake] in ml/kg .cntdot. min (women only), flexibility and strength. Significant decreases were found in selected skinfold measurements, and in resting heart rate (control group showed similar decreases). No change was found in body weight or in relative or absolute body fat. Generally, the women exhibited equal or greater changes when compared to the men for all variables assessed, which could be a function of their lower initial starting levels, or a more intense training program. Circuit weight training was a good general conditioning activity, i.e., attended to more than 1 component of fitness.

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