J Appl Physiol 24: 700–706ĭoolittle TL, Bigbee R (1968) The twelve-minute run-walk: a test of cardiorespiratory fitness of adolescent boys.
JAMA 203: 201–204ĭavies CTM (1968) Limitations to the prediction of maximum oxygen intake from cardiac frequency measurements. Am Heart J 85: 546–562Ĭooper KH (1968) A means of assessing maximal oxygen intake. Lea and Febiger, Philadelphiaīruce RA, Kusumi F, Hosmer D (1973) Maximal oxygen intake and nomographic assessment of functional aerobic impairment in cardiovascular disease. It is concluded that the 20-m shuttle run test is a valid and reliable test for the prediction of the \(\dot V\)O 2 max of male and female adults, individually or in groups, on most gymnasium surfaces.Īmerican College of Sports Medicine (1975) Guidelines for graded exercise testing and exercise prescription. Finally, test and retest of the 20-m shuttle run test also yielded comparable results ( r=0.975, SEE=2.0 ml O 2 The 20-m shuttle run test and another maximal multistage field test involving continuous track running gave comparable results ( r=0.92, SEE=2.6 ml O 2 There was no difference between the means of these tests or between the slopes of the \(\dot V\)O 2max - maximal speed regressions for the two types of surfaces. Twenty-five of the 91 subjects performed the 20-m shuttle test twice, once on a hard, low-friction surface (vinyl-asbestos tiles) and another time on a rubber floor, as well as a walking maximal multistage test on an inclined treadmill.
Later, the multistage protocol was slightly modified to its final version, in which the test started at stage 7 Met and continued with a 1 Met (3.5 ml O 2 h −1) by means of the following regression equation: y=5.857x - 19.458 r=0.84 and SEE=5.4.h −1 every 2 min, the 20-m shuttle run test enabled prediction of the \(\dot V\)O 2 max (y, ml.min −1 respectively) performed the test and had \(\dot V\)O 2 max estimated by the retroextrapolation method (extrapolation to time zero of recovery of the exponential least squares regression of the first four 20-s recovery \(\dot V\)O 2 values).In order to validate a maximal multistage 20-m shuttle run test for the prediction of \(\dot V\)O 2 max, 91 adults (32 females and 59 males, aged 27.3☙.2 and 24.8±5.5 year respectively and with mean \(\dot V\)O 2 max (± SD) of 39.3☘.3 and 51.6☗.8 ml
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