Abstract des Autors

Body build and peak-exercise physiological variables of adolescent athletic boys subdivided into age groups of 15, 16 and 17 years (N = 148) were studied during an all-out treadmill run. The anthropometric parameters studied were stature, body mass, relative fat content and the metric and plastic indices of CONRAD's growth type. There were several significant differences between the age groups. The observed exercise physiological variables were respiratory minute volume, absolute and mass-related oxygen uptake, gas exchange ratio, respiratory and heart rate, tidal volume and net running time as performance score. In respect of the peak exercise values there were no significant differences between the age groups in heart rate, relative aerobic power and gas exchange ratio, but marked differences existed for aerobic power, oxygen pulse, respiratory minute volume, tidal volume and respiratory rate. Verf.-Referat