The purpose of this study was twofold: to determine (a) the test-retest reliability of the 20-m shuttle test (20-MST) (maximal run speed and time), (b) compared the concurrent ralidity of the 20-MST and 12 minute run test (12-MRT) of aerobic fitness for predicting maximal oxygen uptake. An intra class coefficient of .90 and .92 were obtained in reliability the test twice, 1 week apart. (M(subscript T1)=226.68±15.64 vs. M(subscript T2)=227.18±15.68; M(subscript T1)=754.10±110.56 vs. M(subscript T2)=735.70±109.43). the correlation coefficient between VO2 and the 20-MST in maximal run speed and time were found to be.82and.83(P<.01), and that of VO2 with the 12min endurance run was.74 (P<.01) In conclusion, the 20-MST and 12-MRT field tests both appear to be valid predictors of VO2 in male univresity students. However constraints of equipment and subjects motivation favor the 20-MST for the assessment of aerobic capacity.
The purpose of this study was twofold: to determine (a) the test-retest reliability of the 20-m shuttle test (20-MST) (maximal run speed and time), (b) compared the concurrent ralidity of the 20-MST and 12 minute run test (12-MRT) of aerobic fitness for predicting maximal oxygen uptake. An intra class coefficient of .90 and .92 were obtained in reliability the test twice, 1 week apart. (M(subscript T1)=226.68±15.64 vs. M(subscript T2)=227.18±15.68; M(subscript T1)=754.10±110.56 vs. M(subscript T2)=735.70±109.43). the correlation coefficient between VO2 and the 20-MST in maximal run speed and time were found to be.82and.83(P<.01), and that of VO2 with the 12min endurance run was.74 (P<.01) In conclusion, the 20-MST and 12-MRT field tests both appear to be valid predictors of VO2 in male univresity students. However constraints of equipment and subjects motivation favor the 20-MST for the assessment of aerobic capacity.