Cardiorespiratory adaptations to training at specified frequencies.
D000222:Adaptation, Physiological; D000293:Adolescent; D000328:Adult; D002320:Cardiovascular Physiological Phenomena; D006801:Humans; D008297:Male; D010806:Physical Education and Training; D010809:Physical Fitness; D012143:Respiratory Physiological Phenomena; D013997:Time Factors