Prediction of Time to Exhaustion at Different Speeds Based on Some Physiological and Anthropometric Parameters in Young Men

The purpose of this study was to predict the time to exhaustion based on some physiological and anthropometric parameters in young men. A total of 75 male students (20.74±1.22 years, 67.25±10.78 kg, and 174.3±0.06 cm) were selected using convenience (availability, maximal oxygen uptake 47/1±3/29 ml/kg/m-1) sampling. Firstly, anthropometric variables and physiological parameters involving lactate threshold, aerobic and anaerobic power, resting heart rate, physical activity, velocity at maximal oxygen uptake, lower-body endurance as well as strength and lower-body explosive power were measured. Also, to measure the heart rate, O2 saturation and running time, all subjects participated in a bout of treadmill running to exhaustion at four different speeds (8, 10, 12, and 14 km/h-1), with slope set at zero. The results show the velocity at maximal oxygen uptake, heart rate, resting heart rate, physical activity, and lower-body explosive power predicted time to exhaustion at a speed of 8 km/h-1(P≤0.05). The velocity at maximal oxygen uptake, running history, resting heart rate, V. lactate, and weight predicted time to exhaustion at a speed of 10 km/h-1 (P≤0.05),V. lactate, running history, weight, resting heart rate and maximum power time to exhaustion at a speed of 12 km/h-1 (P≤0.05), Thevelocity at maximal oxygen uptake, physical activity, weight, maximum power, and running history were the prediction factors of time to exhaustion at a speed of 14 km/h-1 (P≤0.05). The velocity at maximal oxygen uptake, resting heart rate and running history were common at most speeds. According to the results of time to exhaustion, the velocity at maximal oxygen uptake, running history, resting heart rate, and lactate thresholds can be used.