, very small to small but non-significant intervention effects for all outcomes variables were b apparent Subgroup analyses showed that training volume, age and study design typically have a small 3 influence on the overall intervention with high training volumes, younger E children/adolescents and RCTs yielding the largest effects. o However, results for each subgroup were still in favour of s the control group. As a result of the small number of studies examining the other psychological outcomes, no s other subgroup comparisons could be made.
Overall, the effect of resistance training on psychosocial variables is unclear as very small to small and non-sig- nificant effects were shown in favour of both the inter- vention