The addition of exercise to a weight loss diet on inflammatory markers: a systematic review and Meta-analysis of controlled clinical trials

Sara Beigrezaei, Zeinab Yazdanpanah, Sepideh Soltani, Seiede Hamide Rajaie, Sahar Mohseni-Takalloo, Tayebeh Zohrabi, Mojtaba Kaviani, Scott C. Forbes, Julien S. Baker, Amin Salehi-Abargouei*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

Abstract

This systematic review and meta-analysis of controlled clinical trials was performed to evaluate the effects of weight-loss diets plus exercise compared with weight-loss diets alone on inflammatory biomarkers in adults. PubMed, Scopus, EMBASE, Web of Science (ISI), and Google Scholar were searched up to April 2021. Overall effects were derived using a random effects model. The overall quality of evidence was assessed using Grading of Recommendations Assessment, Development, and Evaluation (GRADE). Twenty-nine trials were included in this systematic review and meta-analysis. The meta-analysis showed no significant difference in serum high sensitivity C-reactive protein (hs-CRP) [weighted mean difference (WMD) = −0.004 mg/l, 95% CI: −0.140, 0.132, P = 0.954], interleukin-6 (IL-6) (WMD = −0.039 pg/ml, 95% CI: −0.233 to 0.156, P = 0.696), and tumor necrosis factor-α (TNF-α) (WMD = 0.405 ng/ml, 95% CI: −1.036 to 0.226, P = 0.209) after adding exercise to a weight-loss diet compared with a weight-loss diet alone. Subgroup analysis revealed that exercise plus a weight-loss diet significantly reduced TNF-α in studies greater than 16 weeks in duration (WMD = −0.742 ng/ml, 95% CI: −1.384 to −0.1, P = 0.024). This systematic review and meta-analysis indicate that exercise in addition to a weight-loss diet does not have a significant effect on further reducing inflammatory markers compared to a weight loss diet alone.

Original languageEnglish
JournalCritical Reviews in Food Science and Nutrition
DOIs
Publication statusE-pub ahead of print - 12 Nov 2021

Scopus Subject Areas

  • Food Science
  • Industrial and Manufacturing Engineering

User-Defined Keywords

  • Adults
  • aerobic
  • CRP
  • diet
  • exercise
  • IL-6
  • inflammation
  • inflammatory markers
  • meta-analysis
  • resistance
  • systematic review
  • TNF- α
  • weight-loss

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