The Effect of Chronic Exercise Training on Leptin: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

Background Leptin is a hormone associated with satiety, lipid oxidation, energy expenditure, and energy homeostasis. To date, the current body of research examining the effect of chronic exercise training on leptin has yielded inconsistent results. Objective The purpose of this meta-analysis was to...

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Bibliographic Details
Published in:Sports medicine (Auckland) 2018-06, Vol.48 (6), p.1437-1450
Main Authors: Fedewa, Michael V., Hathaway, Elizabeth D., Ward-Ritacco, Christie L., Williams, Tyler D., Dobbs, Ward C.
Format: Article
Language:English
Subjects:
Body fat
Energy balance
Energy expenditure
Exercise - physiology
Female
Homeostasis
Hormones
Humans
Leptin
Leptin - blood
Lipid peroxidation
Male
Medicine
Medicine & Public Health
Meta-analysis
Obesity
Oxidation
Randomization
Randomized Controlled Trials as Topic
Rodents
Satiety
Sports Medicine
Studies
Systematic Review
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Summary:Background Leptin is a hormone associated with satiety, lipid oxidation, energy expenditure, and energy homeostasis. To date, the current body of research examining the effect of chronic exercise training on leptin has yielded inconsistent results. Objective The purpose of this meta-analysis was to provide a quantitative estimate of the magnitude of change in leptin levels following participation in exercise interventions lasting ≥ 2 weeks. Methods All studies included were peer-reviewed and published in English. To be included, studies randomized human participants to an exercise training group or non-exercise comparison group for an exercise training intervention. Leptin levels were measured at baseline, during, and/or after completion of the exercise training program. Random-effects models were used to aggregate a mean effect size (ES) and 95% confidence intervals (CIs), and identify potential moderators. Results Seventy-two randomized controlled trials met the inclusion criteria and resulted in 107 effects ( n  = 3826). The mean ES of 0.24 (95% CI 0.16–0.32, p  
ISSN:0112-1642
1179-2035
DOI:10.1007/s40279-018-0897-1