Abstract

Effects of submaximal physical exercise on hydroxyproline urine excretion were studied in two groups of field hockey players, and in a group of cyclists with short duration of training. The purpose of the study was to identify the relationship between the effects of exercise on hydroxyproline urine excretion and duration of training on the one hand, and the type of sports discipline on the other. The investigations were carried out in three phases: before exercise, during cycloergometric work, and recovery. Field hockey players, regardless of the level of training advancement, showed no significant differences in hydroxyproline urine excretion; however, the hydroxyproline-body height and hydroxyproline-body weight indices were significantly higher in the beginning hockey players. Cyclists, as compared to hockey players, showed higher hydroxyproline urine excretion in all the investigation phases. At the same time, their hydroxyproline indices were significantly decreased during the recovery period. The results suggest that predominance of endurance exercises in training affects metabolism of connective tissue. Verf.-Referat