The effects of acute endurance exercise on visfatin and insulin levels in obese women

Visfatin is a newly discovered adipokine which is highly expressed in visceral adipose tissue that may induces changes in insulin resistance. the aim of this study was to examine the effect of acute endurance exercise on visfatin and insulin levels in obese women. the research is a quasi-exprimental study that 10 obese women volunteers (age 37±9/89 y, weight 92.18±6.64, body mass index 35.95±4.9kg/m2, fat percent 42.6±5.74% and waist-hip ratio 1.02±0.06) were chosen randomly and participated in a 30 minutes exercise program with 60-70%vo2max on a treadmill. serum glucose, insulin, and visfatin were measured before and immediately after exercise and 1 hour after the activity. serum visfatin levels were measured by elisa kit. insulin resistance index was calculated by using homa-ir model . analysis of variance with repeated measures was used to determine base difference and the effect of activity type on blood parameters. the findings showed that acute endurance exercise increased slightly serum visfatin (pre-test 12.64±3.85, post-test 18.61±15.55) and insulin(pre-test 14.21±4.24, post-test 22.43±14.49), immediately after exercise, but this increase did not show significant changes (visfatin, insulin). also no significant change was seen in glucose and insulin resistance.plasma visfatin increases along with rising glucose concentration and plasma insulin after exercise, but this increase may be related to exercise intensity.