Table 3 Moderator analysis
From: The effect of resistance training interventions on weight status in youth: a meta-analysis
Moderator | Outcome | Hedges’g (95% CI) | No. of studies | Between group comparison: Q (df) |
|---|---|---|---|---|
Sex of participants | Skinfolds (mm) | Females = 0.815 (0.167 to 1.463)* | 3 | 3.310 (2) |
Males = 0.188 (− 0.105 to 0.482) | 4 | |||
Mixed = 0.181 (− 0.100 to 0.462) | 2 | |||
Sex of training group | Body fat (%) | Mixed = 0.277 (0.055 to 0.500)* | 7 | 0.660 (2) |
Males = 0.139 (0.− 0.108 to 0.387) | 6 | |||
Females = 0.212 (− 0.254 to 0.678) | 2 | |||
Skinfolds (mm) | Mixed = 0.320 (0.094 to 0.545)** | 8 | 1.214 (1) | |
Males = − 0.001 (− 0.519 to 0.517) | 1 | |||
Weight status | Body mass index (kg/m2) | Obese = 0.540 (0.220 to 0.860)** | 1 | 8.586 (3)* |
Healthy = − 0.172 (− 0.668 to 0.324) | 3 | |||
Mixed = 0.063 (−0.231 to 0.358) | 4 | |||
Overweight/obese = −0.003 (− 0.313 to 0.307) | 4 | |||
Body fat (%) | Mixed = 0.301 (0.005 to 0.598) * | 4 | 0.374(2) | |
Healthy = 0.189 (− 0.032 to 0.410) | 7 | |||
Overweight/obese = 0.198 (− 0.203 to 0.598) | 4 | |||
Skinfolds (mm) | Healthy = 0.320 (0.094 to 0.545)** | 8 | 1.241 (1) | |
Overweight/obese = − 0.001 (− 0.519 to 0.517) | 1 | |||
Waist circumference (cm) | Obese = 0.636 (0.314 to 0.958)*** | 1 | 7.586(3)* | |
Healthy = 0.100 (− 0.684 to 0.884) | 1 | |||
Mixed = 0.056 (− 0.267 to 0.379) | 3 | |||
Overweight/obese = −0.015 (0.083 to 0.497) | 1 | |||
Age | Body fat (%) | > 12 = 0.211 (0.016 to 0.407)* | 8 | 0.004(1) |
< 12 0.222 (− 0.036 to 0.480) | 7 | |||
Skinfolds (mm) | < 12 = 0.415 (0.116 to 0.714) ** | 5 | 1.294 (1) | |
> 12 = 0.165 (− 0.146 to 0.476) | 4 | |||
Pubertal stage | Skinfolds (mm) | < 2 = 0.415 (0.116 to 0.714) ** | 5 | 0.392 (1) |
> 2 0.199 (− 0.7407 to 0.805) | 3 | |||
Waist circumference (cm) | > 2 = 0.636 (0.314 to 0.958) *** | 1 | 0.536(1) | |
< 2 = 0.100 (− 0.684 to 0.884) | 1 | |||
Location | Body mass index (kg/m2) | School free time = 0.277 (0.069 to 0.485)* | 5 | 2.152(2) |
School PE = − 0.103 (− 0.825 to 0.618) | 1 | |||
Community = 0.027 (− 0.227 to 0.280) | 5 | |||
Body fat (%) | School free time = 0.256 (0.030 to 0.483)* | 6 | 0.337(2) | |
School PE = 0.259 (− 0.301 to 0.820) | 2 | |||
Community = 0.164 (− 0.069 to 0.397) | 7 | |||
Quality score | Body fat (%) | Moderate = 0.269 (0.001 to 0.537)* | 5 | 0.282 (2) |
Weak = 0.135 (− 0.363 to 0.632) | 2 | |||
Strong = 0.197 (− 0.011 to 0.405) | 8 | |||
Waist circumference (cm) | Strong = 0.636 (0.314 to 0.958)** | 1 | 7.528 (1)** | |
Moderate = 0.048 (− 0.221 to 0.317) | 5 |