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Meta-Analysis
. 2022 Nov;31(11):3123-3137.
doi: 10.1007/s11136-022-03146-7. Epub 2022 May 6.

Effect of exercise as adjuvant to energy-restricted diets on quality of life and depression outcomes: a meta-analysis of randomized controlled trials

Seyede Hamide Rajaie  1   2 , Sepideh Soltani  3 , Zeinab Yazdanpanah  1   2 , Tayebeh Zohrabi  1   2 , Sara Beigrezaei  1   2 , Sahar Mohseni-Takalloo  1   4 , Mojtaba Kaviani  5 , Scott C Forbes  6 , Julien S Baker  7 , Amin Salehi-Abargouei  8   9
Affiliations
Meta-Analysis

Effect of exercise as adjuvant to energy-restricted diets on quality of life and depression outcomes: a meta-analysis of randomized controlled trials

Seyede Hamide Rajaie et al. Qual Life Res. 2022 Nov.

Abstract

Background and aim: Obesity and related co-morbidities lead to a decrease in health-related quality of life (HRQOL) and mood. Lifestyle strategies may improve these outcomes. However, the efficacy of exercise in conjunction with a weight-loss diet on HRQOL and mood is unclear. The aim of this systematic review and meta-analysis of randomized controlled trials (RCTs) was to examine whether the addition of exercise to energy-restricted dietary programs improves HRQOL and mood status when compared with energy-restricted diets alone in overweight and obese adults.

Methods: Eligible RCTs were identified by searching PubMed/MEDLINE, EMBASE, ISI (Web of sciences), Scopus, and Google Scholar up to April 2021. Summary effects were derived using a random-effects model. The quality of evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) methodology.

Results: The meta-analysis revealed that an energy-restricted diet plus exercise compared with an energy-restricted diet alone had no significant effects on depression (n = 6, hedges'g = - 0.04, 95% CI: - 0.28,0.20), MOS 36-Item Short-Form Health Survey (SF-36)-physical component summary scores (n = 8, weighted mean difference (WMD) = 1.51, 95% CI: - 0.16, 3.18), SF36-mental component summary scores (n = 7, WMD = 0.64, 95% CI: - 1.00, 2.28), and HRQOL disease-specific questionnaire scores (n = 5, hedges'g = 0.16, 95% CI: - 0.09, 0.40). The GRADE revealed that the quality of evidence was low for disease-specific HRQOL scores, and depression status; and high for physical and mental health assessed by SF-36.

Conclusion: In our sample of overweight and obese adults, no beneficial effect of adding exercise to an energy-restricted diet was found in terms of HRQOL and Depression.

Keywords: Adults; Aerobic; Depression,mood; Diet; Exercise; IVhet model; Meta-analysis; Obese; Overweight; Quality of life; Randomized controlled trial; Resistance; Systematic review; Weight loss.

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