The effect of aerobic exercise in early and end of follicular phase on serum leptin levels in non-athlete women

The aim of study was to determine the effect of aerobic exercise in early and end of follicular phase on serum leptin، estrogen and cortisol levels in non-athlete femals. Twelve non-athlete women (age= 26±2 Yr.، height= 160. 64±3. 98 cm، weight= 53. 36±3. 85 kg، %fat= 24. 45±3. 67، BMI= 20. 81±1. 46 kg. m2 and VO2max= 31. 46±14. 9) volunteered. Aerobic exercise with %70 VO2max was conducted as a crossover in the early and end of follicular phase on motorized treadmill to exhaustion. Blood samples (3 mmol)، were collected before، immediately and 48 hours after the protocol. Leptin has been measured by ELISA. Data was analyzed by analyzing of variance (ANOVA) with repeated measures. Rest leptin levels in early and end of follicular phase was no significantly difference (p> 0. 05). Also، serum leptin levels did not show significant difference in response to aerobic exercise in early of follicular phase (p> 0. 05). But، serum leptin levels in end of follicular، immediately after the exercise comprised with before exercise was significantly increased (p=0. 02). Serum leptin levels 48 houre after the exercis immediately after the exercise was significantly decreased in end of follicular phase (p=0. 04). There fore aerobic exercise probably on serum leptin levels in end of follicular phase effective more than early of follicular.