Prediction of maximal oxygen uptake from a 20-m shuttle run as measured directly in runners and squash players

Abstract The aim of this study was to assess the validity of the multistage shuttle run test in predicting maximal oxygen uptake (VO 2 max) in athletes trained in sports with different physical demands. Over a 14-day period, 10 male long-distance runners (continuous high-intensity exercise) and 10 male squash players (intermittent high-intensity exercise) performed, in random order, the multistage shuttle run test and a maximal treadmill protocol of increasing elevation which elicited VO 2 max. Compared with direct measurement of VO 2 max, the shuttle run test significantly underpredicted the VO 2 max of the group of runners (n=10; P<0.01) and of the athletes as a whole (n=20; P<0.01). The correlation (r) between VO 2 max determined by the shuttle run test and by the treadmill protocol was 0.61 (P<0.05) for the squash players, 0.71 (P<0.05) for the runners and 0.67 (P<0.01) for the athletes as a whole. As the subjects represented athletes trained specifically in sports with different physical demands, thi...