摘要：Background and Study Aim: Aerobic capacity in children and youth should be stimulated by training according to the rhythm and direction of the children’s biological development. The aim of this study was to determine the aerobic capacity of young trained boys. Material and Methods: The subjects of this study were both untrained individuals as well as athletes training regularly in the following sports: judokas (n=15, mean age 14.1), soccer players (n=12, mean age 13.8), swimmers (n=12, mean age 14.2), gymnasts (n=9, mean age 13.7) and untrained (n=12, mean age 15.0), on the basis of anaerobic threshold (AT) specified as RER=1 and of O2max.The subjects performed the test until exhaustion. Gas analyzer EOS Sprint (Jaeger) and the cycloergometer (Jaeger) were used in the study. The continuous progressive intensity protocol started at 1.5 W. kg-1 for 6 min (v = 55 rpm) and increased 25 W every 1 minute until exhaustion. Results: The highest values of O2max (3.2 L. min-1; 59.42 mL . kg-1 . min-1) were obtained by the swimmers, whereas the lowest (2.5 L. min-1; 49.4 mL. kg-1 . min-1) were obtained by the gymnasts. While the swimmers obtained RER=1 at 69% of O2max, the gymnasts’ AT level was at 57% of O2max. The differences were statistically significant (p<0.001). Conclusions: The significant differences probably result from the character of conducted training in the considered disciplines
关键词：aerobic capacity; anaerobic threshold; respiratory exchange ratio; young athletes
