Changes in the aerobic capacity and body composition in obese boys after reduction

tpánka prynarová ¹ and Jana Paízková ¹

¹ Physical Culture Research Institute, Prague, Czechoslovakia

Seven obese boys submitted themselves to a 7-week regimen of dietary restriction and regular exercise. Measurements were made at the beginning and end of the period. A significant drop in body weight was achieved by reduction of adipose tissue and also of lean body mass (LBM). The ratio of LBM to body weight increased. These changes were associated with significant drop of maximum oxygen consumption. The increase of the Vo_{2 max} per kilogram of body weight and the drop of the Vo_{2 max} per kilogram of LBM were not significant. Between the decrease of LBM and the drop of Vo_{2 max} there exists a significant negative relationship; and between the decrease of LBM and the rise of the Vo_{2 max} per kilogram of body weight, a significant positive relationship. The decrease of Vo_{2 max} in these boys was not considered due to deteriorated circulatory or respiratory function but to changes in body composition.

Submitted on February 17, 1964