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Efficacy of postprandial exercise in mitigating glycemic responses in overweight individuals and individuals with obesity and type 2 diabetes: systematic review and meta-analysis
Meta-analysis of 31 acute trials reporting that postprandial exercise versus time-matched rest significantly lowers glucose area-under-the-curve and 24-hour mean glucose (random-effects Hedges' g ≈ −0.32 each), with larger reductions when sessions exceed 30 minutes and in type 2 diabetes cohorts.
Pooled effects (vs time-matched no-exercise control)
- Glucose AUC: Hedges' g = −0.317 (SE 0.057; 95% CI about −0.43 to −0.20; p<0.001)
- 24 h mean glucose: g = −0.328 (SE 0.062; 95% CI about −0.45 to −0.20; p<0.001)
Moderators (headline)
Authors report stronger AUC reductions when postprandial exercise lasts >30 min versus ≤30 min, and stronger 24 h mean glucose reductions with ≥60 min total postprandial exercise versus <60 min, with larger effects in T2DM than non-diabetic cohorts.
Interpretation
Confirms post-meal movement as a population-level glycemic tool; exact minutes and modality still depend on feasibility—walking remains the most accessible option for many users.
Outcomes
- Effect Size (Cohen's d / SMD)-0.317d (Cohen's d)
- Effect Size (Cohen's d / SMD)-0.328d (Cohen's d)