Research
Mixed
Endurance training does not preserve satellite cell numbers or markers of muscle regeneration/denervation in very old men compared to sedentary peers.
Do not expect exercise to restore youthful muscle repair capabilities (satellite cells) in your 80s. While training improves blood flow and energy use, the cellular machinery for regeneration appears to decline with age regardless of activity level.
GoodRefutesHIGH confidence
There were no differences between the groups in the number of myonuclei and satellite cells per fiber, and no significant differences between LF and HF.
Why this rating
Small sample size, but clear negative finding across all groups.
Source
Skeletal muscle morphology, satellite cells, and oxidative profile in relation to physical function and lifelong endurance training in very old men
Elisabeth Skoglund et al. · Journal of Applied Physiology · 2022
DOI 10.1152/japplphysiol.00343.2022
cross_sectional · n=26Cited 10×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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