Energetics of Middle-Distance Running Performances in Male and Female Junior Using Track Measurements (original) (raw)
2004, The Japanese Journal of Physiology
Middle-distance running performances (800-1,500 m) relies on both aerobic and anaerobic metabolisms . The relative contribution of each metabolic pathway during a middle-distance run has already been reported in elite athletes, but the performance was for males only performing on a treadmill . Weyand et al. [3] have demonstrated that middle-distance performances depended more on aerobic capacity than on anaerobic capacity. Indeed, Weyand et al. have shown that, in sub-elite runners (2 min 01 sϮ5 s and 2 min 32 sϮ6 s over 800 m for males and females), the peak oxygen deficit was a moderately strong predictor of middle-distance performances (38 and 27% of the variance of the performances over 800 and 1,500 m). Therefore, the energetic factors of performance were expressed with different units: the anaerobic one was reported as capacity (the "anaerobic work capacity" in J), and the aerobic one was expressed as a power (the "maximal aerobic power" in W). Wilkie's model (see method section) gives a physiological background of the hyperbolic function between the total power output (Ė r ) and the exercise duration. According to Wilkie's equation of , the aerobic and anaerobic factors of performance can be calculated with the same dimension because it allows the aerobic power (Ė r max aero ) to be distinguished from the
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