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Mean difference effects of resistance‐based exercise compared with control on body fat percentage in children/adolescents (A), young adults (B), middle‐aged adults (C), and older adults with overweight/obesity (D). Overall subgroup analyses conducted with a random‐effects model. I 2 represents the heterogeneity test; diamonds represent pooled estimates of random‐effect meta‐analysis; studies deemed outliers are highlighted in gray
