Effect of Acute Endurance Exercise on Serum Adiponectin Levels among Elderly Overweight Men

Obesity is one of the main causes of health problems in most countries. Adipose tissue secretes several proteins known as Adipokines, which have an important role in glucose metabolism system. The aim of this study was to evaluate the effect of acute endurance exercise on serum levels of adiponectin levels in elderly overweight individuals (men). 12 healthy male subjects were investigated. All subjects performed one session of endurance exercise including: 30 minutes of cycling at 70-75% of maximum heart rate. Blood samples were taken before exercise and immediately after exercise inorder to analyzing the serum levels of adiponectin, insulin and glucose. Data were analyzed using student's t-test and Pearson’s correlation. Statistical significance was set at p≤0.05. There were no significant changes in the adiponectin levels following exercise (P>0.05). There was also no significant correlation between adiponectin and insulin resistance index (P>0.05). Glucose and insulin concentration and insulin resistance index significantly decreased following exercise (P<0.05). Furthermore, we observed a significant correlation between insulin and insulin resistance index (r=0/996). Although 30 minutes of cycling significantly altered glucose and insulin concentration and IR, had no significant effect on adiponectin levels.