Energy balance
Supervision has a trivial and statistically non-significant impact on body composition outcomes (body fat %, fat mass, fat-free mass) compared to unsupervised training.
Do not expect a coach to help you lose fat or gain muscle mass more than you would on your own, provided you follow the program. Focus on consistency and progressive overload. Supervision is more valuable for learning complex lifts and maximizing strength than for changing body composition.
The main model for all body composition effects revealed a trivial standardised point estimate favouring SUP (0.07 [95%CI = -0.01 to 0.15]).
Why this rating
Meta-analysis of 12 RCTs, but with 'very poor precision' for some subgroups and trivial effect sizes.
Source
The Role of Supervision in Resistance Training; an Exploratory Systematic Review and Meta-Analysis
James Fisher et al. · International Journal of Strength and Conditioning · 2022
DOI 10.47206/ijsc.v2i1.101
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