Journal of Sport Physiology Special Groups
the effect of an aerobic exercise training on the cardiorespiratory fitness and body composition of overweight men
Document Type : Original Article
Author
Department of Physical Education and Sport Sciences, Ahar Branch, Islamic Azad University, Ahar, Iran
Abstract
Background and Aims: Obesity and overweight cause the occurrence of chronic diseases such as cardiovascular diseases and metabolic disorders. The purpose of this study was to investigate the effect of an aerobic exercise training on the maximum oxygen consumption (Vo2max) and body composition of overweight men.
Method: 32 overweight men aged 20 to 25 years were selected as samples and randomly assigned to two experimental and control groups. The experimental group performed three months of aerobic exercise with 60-75% of maximum heart rate. In the pre- and post-test phase, body composition was measured using (Bioelectrical Impedance Analysis -IOI-570) and Vo2max was measured using Cosmos treadmill with Cortex Meta max gas analyzer. The data was evaluated analysis of covariance, paired and independent t-test at a significant level (p ≤ 0.05).
Results: The results showed that percentage of body fat (P.B.F), fat mass (F.M), abdominal circumference (A.C) significantly decreased in the experimental group, but lean body mass (L.B.M), soft lean mass (S.L.M), basal metabolic rate (B.M.R) and maximum oxygen consumption (ml.kg.mi) and minute ventilation (L/M) significantly increased (p ≤ 0.05).
Conclusion: Aerobic exercise with an intensity of 60 - 75 HRmax% with three sessions per week in overweight men is associated with a decrease in fat mass, body fat percentage and an increase in lean body mass, soft lean mass and aerobic capacity.
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