Introduction:
Studies indicate that obestatin, an anti-hunger peptide, plays an important role in energy balance and body weight. Although, it seems that sports activity by changing the concentration of obstatin in the blood circulation can be considered as a strategy to adjust energy intake and treat obesity, however, the effectiveness of the most effective type of sports activity on the concentration of this hormone, the amount of appetite and energy intake is still It is faced with contradictory questions and opinions, and this issue requires more research. The present study was to conducted to comparison of the persistence of changes in appetite, energy intake, and obestatin hormone following high intensity interval (HIIE) and resistance exercise overweight women.
Methods:
Eleven overweight women with 18- 35 years ages completed two protocols: In the HIIE protocol, subjects performed 4 sets of 5 min cycling on a cycle ergometer at an intensity corresponding to 80% of Heart rate reserve (HRR), and resistance protocol included performe three sets of 8 repetitions at 80% of one repetition maximum (1RM) include 7 exercises lat pull-down, leg press, chest press, knee extension, shoulder press, leg curl and seated row. Blood samples were collected before, immediately and 24 h after both protocols for measuerd obestatin concentration. Also, appetite and energy intake estimated before and after both protocols.
Results:
Appetite significantly decreased immediately after both exercise (p<0.05), and 24 h after return to baseline. However, total energy intake significantly increased only after HIIE protocol (p<0.05), and obestatin concentration remained unchanged after both protocols
Conclusion:
In general, it can be concluded that obestatin cannot be counted as a significant factor in short term regulation and energy balance.