Abstract des Autors

Studied were 58 girls aged 10 to 14 years. Sexual maturation was evaluated according to Tanner, bone age was determined from X-ray pictures of the wrist. Motor capacity has been assessed before and after a 5 month period of regular physical education classes by Cooper and Harvard tests, shuttle run 4 x 9 m, 20 m dash, number of sit-ups in 30 s, number of squats in 30 s, standing long jump and trunk forward flexion. While in the entire group no significant improvement of any fitness test result has been observed, significant changes (P<0.05) were found at various stages of sexual maturation. In Stage IV, the velocity of the 20 m dash increased in all girls and in 83% of them the number of sit-ups increased as well. The standing long jump improved only in Stage III. The number of squats in 30 s improved significantly in Stages II and III but decreased in Stage IV. Trunk forward flexion has worsened in Stage III. When the girls studied were classified by age, they proved uniform regarding their motor capacity. It has been concluded that the conditions for an improvement of motor capacity differ with the progress in sexual maturation. Verf.-Referat