Effects of resistance exercise on lipolysis pathway in obese pre and postmenopausal women

Background and objectives: The purpose of study was to examine the effects of regular resistance exercise for 12 weeks on lipolysis pathway in pre- and post- menopausal women with obesity. Methods: Twenty-three pre- and post- menopausal women with body fat percentages of 30% or more divided into pre- menopausal group (n=9) and post- menopausal group (n=14). All subjects participated in resistance exercise training for 12 weeks. Anthropometric and physical fitness tests were performed on all participants. Protein analyses were performed with subcutaneous fatty tissue extracted, and the samples were analyzed of relevant protein levels changes by using Western blotting. All serum samples were submitted for enzyme-linked immunosorbent assay measurements of adipocyte factors. Results: After 12 weeks between pre- menopausal and post- menopausal groups adipose triglyceride lipase (ATGL), monoacylglycerol lipase (MGL) and perilipin (PLIN) protein levels were significantly lower in the post- menopausal group than in the pre- menopausal group. Hormone-sensitive lipase (HSL) protein levels were significantly higher in the post- menopausal group than in the pre- menopausal group. In addition, leptin concentration was significantly decreased after resistance exercise in the post- menopausal group. Adiponectin concentration was significantly increased after resistance exercise in the both groups. Conclusions: This study indicates that regular resistance exercise to change of leptin and adiponectin might be release of reduction of % fat, and driving overall greater change ATGL, HSL, MGL and PLIN levels in subcutaneous fatty tissue in the obese post- menopausal group more than obese pre- menopausal group.