Research
Mixed
Resistance training in hypoxia (RTH) yields similar muscle hypertrophy and strength gains compared to normoxia when protocols are not optimized for specific covariates.
If you are training in hypoxia, do not expect automatic superior gains in muscle size or strength compared to training in normal air. The overall benefit is negligible unless you specifically optimize your rest intervals and load.
GoodRefutesHIGH confidence
The overall analyses showed similar improvements in CSA (SMD [CIs] = 0.17 [− 0.07; 0.42]) and 1RM (SMD = 0.13 [0.0; 0.27]) between RTH and RTN.
Why this rating
Systematic review with meta-analysis of 17 RCTs, though heterogeneity exists.
Source
Efficacy of resistance training in hypoxia on muscle hypertrophy and strength development: a systematic review with meta-analysis
Cristina Benavente et al. · Scientific Reports · 2023
Meta-analysis · 17 studiesCited 24×
Read the paper This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →