Paper Information

Journal:   OLYMPIC   SPRING 2008 , Volume 16 , Number 1 (SERIAL 41); Page(s) 89 To 98.
 
Paper: 

THE ADAPTATION OF SERUM LEPTIN AFTER AEROBIC TRAINING

 
 
Author(s):  HAGHIGHI A.H., HAMEDI NIA M.R.
 
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Abstract: 

The aim of the present research was to study the adaptation of serum leptin after aerobic training in obese men. For this purpose, 24 male subjects (age 35-48) voluntarily participated in this study. There were 16 obese men with 82.7 kg average weight, 23.7 % body fat percent and 25.5 ml/kg.min VO2 max, and 8 lean men with 57.75kg average weight, 8.32% body fat percent and 29 ml/kg.min VO2 max. The obese men were randomly assigned to one of two groups of aerobic training or control group. The 3rdgroup was called lean men group. Blood samples were taken in fasting state from all subjects. The experimental subjects received aerobic training for 13 weeks, 3 sessions per week. The aerobic training program included continuous running with an intensity of 75-85 % maximal heart rate. The time of running in the first session was 15 minutes, and every two sessions one minute was gradually added to this running time, the final running time reached 30 minutes, arid this time was maintained up to the final session. The results showed that aerobic training caused a significant decrease in the serum leptin level of the obese men. In addition, they determined that in obese men at baseline state, leptin concentration was significantly higher than in lean men (P<0.05).We observed a positive and significant correlation between leptin and insulin; leptin and body fat percent; and a negative and significant correlation between leptin and serum free fatty acids in base state in all subjects. We concluded that leptin adapted to aerobic training and decreased in obese men. This decrease was greater than the change in fat mass.

 
Keyword(s): AEROBIC TRAINING, LEPTIN, OBESITY
 
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