Research
Cellular
Lean mass increased after resistance exercise training (RET) by +3.2% ± 1.6% and after high-intensity interval training (HIIT) by +1.6% ± 2.1% (P < 0.05).
Incorporating RET and HIIT can effectively increase lean mass in middle-aged men.
StrongSupportsmedium confidence
Lean mass increased after RET and HIIT (+3.2% ± 1.6% and +1.6% ± 2.1%, P < 0.05).
Why this rating
Based on randomized controlled trial design.
Source
Skeletal Muscle Adaptive Responses to Different Types of Short-Term Exercise Training and Detraining in Middle-Age Men
Marcus J. Callahan et al. · Medicine & Science in Sports & Exercise · 2021
DOI 10.1249/mss.0000000000002684
rct · n=35Cited 23×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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