EFFECT OF CIRCUIT WEIGHT TRAINING ON STRENGTH, CARDIORESPIRATORY FUNCTION, AND BODY-COMPOSITION OF ADULT MEN

Google Scholar
  • 1 January 1978
    • journal article
    • research article
    • Vol. 10  (3) , 171-176
Abstract
The changes elicited by circuit weight training (CWT) and running (RN) programs conducted 3 days/wk for 20 wk were determined. Subjects were randomly assigned to 1 of 3 groups: CWT (n = 11); RN (n = 16); and control (n = 14). CWT consisted of 10 exercises performed in 2 sets of 15 reps [repetitions] with 20-25 s rest between exercises. CWT workout time decreased from 30-23 min. Exercise heart rate (HR) increased from 79-84% max. Average weight increased from 42-56% of max 1 RM N.A. strength and total weight increased 81% (1506-2720 lbs/workout). The RN group exercised at 85% max HR for 23-27 min/workout. Multivariate and step-down analyses showed the CWT group to be significantly different from the control group at the end of 20 wk in leg press strength, fat weight, and .ovrhdot.VO2 max (1/min). The RN group was significantly different from the CWT group in .ovrhdot.VO2 max and treadmill time. Univariate analyses revealed no differences between the CWT and control groups in .ovrhdot.VO2 max expressed as ml/kg LBW [lean body weight] .cntdot. min but did show a significant superiority of the RN group over the other 2 groups in this variable. The CWT program was most specific in improving strength and changing body composition and produced only a small aerobic effect as measured on the treadmill running test.

This publication has 2 references indexed in Scilit: