9/3/2023 0 Comments Rest days per week![]() ![]() There was a trend towards a difference in mean ES between MF and HF [mean ES 0.41(95% CI − 0.26–1.09) however, the effect was not significant ( p = 0.23). There was no significant difference in lower body mean ES between HF and LF. Upper body pre- to post-intervention strength gain was similar when MF was compared with LF (ES 0.12 95% CI − 0.22–0.47) p = 0.48]. Upper body pre- to post-intervention strength gain was greater when HF was compared with LF with significant differences between frequencies ( p < 0.01). Volume-equated pre- to post-intervention strength gain was similar when LF was compared to HF. For combined multi-joint and isolation exercises, there was a trend towards higher RT frequency compared with lower frequency however not significant ( p = 0.25). Pre- versus post-training strength analysis comprised of 74 treatment groups from 12 studies. Heterogeneity between studies was assessed using I 2 and Cochran’s Q statistics with funnel plots used to assess publication bias and sensitivity analyses calculated for subgroups. ![]() Outcomes analysed for main effects were pre- to post strength change with volume-equated studies that combined multi-joint and isolation exercise isolation-only exercise and untrained subjects only. Primary data were pooled using a random-effects model. After review, 12 studies were deemed suitable according to pre-set eligibility criteria. ![]() MethodsĬomputerised searches were performed using the terms ‘strength training frequency’, ‘resistance training frequency’, ‘training frequency’, and ‘weekly training frequency’. We conducted a meta-analysis that (1) quantified the effects of low (LF 1 day week − 1), medium (MF 2 days week − 1), or high (HF ≥ 3 days week − 1) RT frequency on muscular strength per exercise (2) examined the effects of different RT frequency on one repetition maximum (1RM) strength gain profiles (multi-joint exercises and single joint exercises) (3) examined the effects of different RT frequency on 1RM strength gain when RT volume is equated and (4) examined the effects of different RT frequency on 1RM strength gains on upper and lower body. However, the relationship between RT frequency and muscular strength remains controversial with reported variances existing across different population groups. The current recommendations for resistance training (RT) frequency range from 2 to 5 days per week (days week − 1) depending on the subjects’ training status. ![]()
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