Comparison of order of concurrent training on anthropometric characteristics, serum IL-15 levels and insulin resistance index in post-menopausal women

Exercise activities have an important role in increasing lean body mass and quality of life in the elderly. Skeletal muscle through the release of myokines have a significant role in muscle growth and improves metabolic condition. The purpose of this study was to investigate the comparison of order of concurrent training on anthropometric characteristics, serum IL-15 levels and insulin resistance index (HOMA) in post-menopausal women.
Twenty eight healthy post-menopausal women (age: 61.25±0.72 years, height: 156±0.02 cm, weight: 71.70±1.09 kg and BMI: 28.35±0.52) were randomly divided into three groups, strength endurance (S) (n=10), endurance strength (E) (n=9) and control (n=9). Training program was done eight week, 3 times per week. Endurance training were performed on a cycle ergometer (intensity: 61-88 % MHR) and strength training involved selected upper and lower body workout (intensity: 40-75 1RM, 8-18 repeat). Height, weight, BMI, WHR and serum levels of IL-15, glucose and insulin were measured and recorded before and after performing protocol. Univariate (covariance) test was used for analyzing of data.
There were no significant differences between experimental groups and control group for insulin (p=0.37). But, there were significant differences in body mass (p=0.02), BMI (p=0.03), fasting glucose (p=0.001), IL-15 (p=0.04) and HOMA (p=0.028). Significant differences were not seen between experimental groups.
Concurrent training distinct from order of it, increases muscle growth factor (IL-15) and improves glucose metabolism in premenopausal women, so these women can take advantage from concurrent training with any order.