Intensity and duration of training and the development of cardiorespiratory endurance.
D000222:Adaptation, Physiological; D000293:Adolescent; D000328:Adult; D002320:Cardiovascular Physiological Phenomena; D006185:Habituation, Psychophysiologic; D006801:Humans; D007858:Learning; D008297:Male; D008722:Methods; D010806:Physical Education and Training; D010809:Physical Fitness; D012143:Respiratory Physiological Phenomena; D013223:Statistics as Topic