The effect of exercise interventions on resting metabolic rate: A systematic review and meta-analysis |
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| Authors: | Kristen MacKenzie-Shalders Jaimon T Kelly Daniel So Vernon G Coffey Nuala M Byrne |
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| Institution: | 1. Faculty of Health Sciences and Medicine, Bond University, Bond Institute of Health and Sport , Gold Coast, Australia kmackenz@bond.edu.au https://orcid.org/0000-0003-4938-5362;3. Faculty of Health Sciences and Medicine, Bond University, Bond Institute of Health and Sport , Gold Coast, Australia;4. Menzies Health Institute Queensland, Griffith University , Gold Coast, Queensland, Australia https://orcid.org/0000-0003-0232-5848;5. Faculty of Medicine Nursing and Health Sciences, Central Clinical School, Department of Gastroenterology, Monash University , Melbourne, Australia https://orcid.org/0000-0002-9560-4469;6. Faculty of Health Sciences and Medicine, Bond University, Bond Institute of Health and Sport , Gold Coast, Australia https://orcid.org/0000-0001-6837-1906;7. School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia https://orcid.org/0000-0001-5310-6640 |
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| Abstract: | ABSTRACT The systematic review and meta-analysis evaluated the effect of aerobic, resistance and combined exercise on RMR (kCal·day-1) and performed a methodological assessment of indirect calorimetry protocols within the included studies. Subgroup analyses included energy/diet restriction and body composition changes. Randomized control trials (RCTs), quasi – RCTs and cohort trials featuring a physical activity intervention of any form and duration excluding single exercise bouts were included. Participant exclusions included medical conditions impacting upon RMR, the elderly (≥65 years of age) or pregnant, lactating or post-menopausal women. The review was registered in the International Prospective Register of Systematic Reviews (CRD 42,017,058,503). 1669 articles were identified; 22 were included in the qualitative analysis and 18 were meta-analysed. Exercise interventions (aerobic and resistance exercise combined) did not increase resting metabolic rate (mean difference (MD): 74.6 kCal·day-195% CI: ?13.01, 161.33], P = 0.10). While there was no effect of aerobic exercise on RMR (MD: 81.65 kCal·day-195% CI: ?57.81, 221.10], P = 0.25), resistance exercise increased RMR compared to controls (MD: 96.17 kCal·day-195% CI: 45.17, 147.16], P = 0.0002). This systematic review effectively synthesises the effect of exercise interventions on RMR in comparison to controls; despite heterogenous methodologies and high risk of bias within included studies. |
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| Keywords: | Measurement metabolism nutrition physiology exercise |
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https://orcid.org/0000-0003-4938-5362;3. Faculty of Health Sciences and Medicine, Bond University, Bond Institute of Health and Sport , Gold Coast, Australia;4. Menzies Health Institute Queensland, Griffith University , Gold Coast, Queensland, Australia