Abstract:

Purpose: Whole-body vibration exercise is an exercise model used to increase performance, in which static and dynamic exercises can be performed on a vibrating platform. It has been reported that irisin is a myokine that is released by the effect of exercise and increases energy expenditure by transforming white adipose tissue into brown adipose tissue. Although the effects of different exercise types on serum irisin levels have been investigated in previous studies, the effects of whole-body vibration exercise on serum irisin levels in sedentary healthy young male individuals is still unknown. In this study, it was aimed to investigate possible serum irisin concentration changes following a single bout of whole-body vibration exercise protocol. Materials and methods: Our study included 12 healthy sedentary male individuals (mean age 21±2.67, body mass index 25.37±2.01 kg/m2). The exercise training program consists of 9 exercises performed on a vibrating platform (Power Plate). Serum irisin concentration in venous blood samples was measured by ELISA method obtained from individuals before and immediately after exercise. Wilcoxon signed rank test was used for statistical analysis, and p≤0.05 values were considered statistically significant. Results: When the effects of whole-body vibration exercise on serum irisin levels were examined; statistically significant increase was found after exercise (before exercise 14.31±1.48 pg/mL and after exercise 15.36±1.08 pg/mL respectively; p=0.05). Heart rate and hematocrit increased significantly (p=0.011 and p=0.036, respectively) in response to whole-body vibration exercise, while blood glucose decreased (p=0.005). Conclusion: The acute increase in serum irisin levels after a single bout of whole-body vibration exercise program in sedentary healthy young male individuals shows that irisin may contribute to energy expenditure positively.

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