Abstract

Endurance in 29 college women was measured on a bicycle ergometer. Subjects pedaled against a constant frictional resistance of 2.5 kg for 6 min at an initial rate of 60 rpm (900 kg-m). Decrement in performance from minute 1 to 6 averaged 28.1. Reliability of test-retest endurance was high . Maximal leg force (MLF) measured during cycling at 60 rpm on an isokinetic ergometer correlated r = .73 and .74 with performance at minutes 2 and 3, but r =.51 to .57 for the other minutes. Removing heterogeneity in body weight and lean body weight from the MLF versus performance correlations by use of partial correlations reduced the correlations by 7.5 and 18.3, respectively. The correlations were significant but low between endurance, leg volume, and body composition. Prediction of cumulative endurance of 6-min duration was satisfactory with a shorter 2- to 4-min performance, since the correlation in predicting the 6-min results were high after minute 2 (r = .76), minute 3 (r = .87), and minute 4 (r = .90). Verf.-Referat