alexa Leptin and adiponectin responses in overweight inactive elderly following resistance training and detraining are intensity related.
Cardiology

Cardiology

Journal of Hypertension: Open Access

Author(s): Fatouros IG, Tournis S, Leontsini D, Jamurtas AZ, Sxina M,

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Abstract CONTEXT: Adiponectin and leptin are closely related to weight control and energy balance, whereas exercise affects elderly metabolic regulation and functional capacity. OBJECTIVE: The objective of this study was to investigate leptin and adiponectin responses in elderly males after exercise training and detraining. DESIGN: The study design was a 1-yr randomized controlled trial. SETTING: The study was performed at the Laboratory of Physical Education and Sport Science Department. PARTICIPANTS: Fifty inactive men [age, 65-78 yr; body mass index (BMI), 28.7-30.2 kg/m2] were recruited from a volunteer database by word of mouth and fliers sent to medical practitioners, physiotherapists, and nursing homes in the local community. INTERVENTION(S): Participants were randomly assigned to a control (n = 10), low-intensity (n = 14), moderate-intensity (n = 12), or high-intensity training (HI; n = 14) group. Resistance training (6 months, 3 d/wk, 10 exercises/three sets) was followed by 6 months of detraining. MAIN OUTCOME MEASURE(S): Strength, exercise energy cost, skinfold sum, body weight, maximal oxygen consumption, resting metabolic rate (RMR), and plasma leptin and adiponectin were determined at baseline and after training and detraining. RESULTS: Strength, maximal oxygen consumption, RMR, and exercise energy cost increased (P < 0.05) after training in an intensity-dependent manner. Skinfold sum and BMI were reduced by resistance training (P < 0.05), with HI being more effective (P < 0.05) than moderate-intensity/low-intensity training. Leptin was diminished (P < 0.05) by all treatments, whereas adiponectin increased (P < 0.05) only in HI. Detraining maintained training-induced changes only in HI. The percent leptin decrease was associated (P < 0.05) with the percent BMI decrease and the percent RMR increase, whereas the percent adiponectin increase was associated (P < 0.05) with the percent BMI decrease. CONCLUSIONS: Resistance training and detraining may alter leptin and adiponectin responses in an intensity-dependent manner. Leptin and adiponectin changes were strongly associated with RMR and anthropometric changes. This article was published in J Clin Endocrinol Metab and referenced in Journal of Hypertension: Open Access

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