The Influence of Interval Circuit Exercises on Physical Fitness of Adolescents

Abstract

Eleven volunteers were compared to nine students in a scheduled physical education class. The two groups were considered to be equivalent in anthropometrical and functional tests. The experimental group (N = 11) participated in a circuit training (10 exercises) program in addition to the regular physical education program for a period of six weeks, with three training sessions per week. Favorable effects on both functional and morphological parameters were obtained. Maximum oxygen intake and oxygen pulse were increased. Pulse rate adaptation was more efficient and heart volume was enlarged. Muscular development could be observed; especially the chest, thigh, and arm girths were increased. The effect upon ventilation was minor.