Measures of aerobic fitness and repeated maximal exercise
University of Wales Institute Cardiff
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Investigations lack the ability to determine the exact mechanisms by which an elevated aerobic fitness enhances recovery. The purpose of this study was to investigate the relationship between performance and fatigue measures analysed in the RSA test and measures of aerobic performance. This study is the first to investigate the relationship between running economy and RSA. Few studies exist that utilise the exercise mode of sprint treadmill running in order to investigate the relationship between O2 uptake and RSA. Eighteen collegiate hockey players, all of whom were familiar with treadmill sprinting, performed a test of RSA consisting of 10 x 6 s sprints with 34 s recovery between each sprint, on a non-motorised Sprint runner treadmill. On a separate occasion subjects performed a test of aerobic performance. This consisted of an analysis of running economy incorporated into an assessment of VO2max on a Woodway motorised treadmill. The principal finding from this study is that the measures of aerobic fitness are not significantly correlated with the performance and fatigue measures analysed in the RSA test. Of particular note was that running economy was not significantly correlated with the RSA measures of fatigue (r = 0.192 and r = 0.205). The present study reports that the measures of aerobic fitness analysed, do not represent the components of aerobic fitness that enhance the recovery from high intensity intermittent exercise.
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