Mixed
Lifelong endurance training preserves skeletal muscle oxidative capacity and capillarization in men aged 82-92, whereas physical function level does not correlate with these morphological markers.
For men in their 80s, maintaining a history of endurance training is associated with better muscle blood supply and energy production than simply being strong. While you cannot change your past, the data suggests that consistent aerobic activity preserves muscle quality better than inactivity, regardless of current strength levels.
Lifelong endurance training, but not higher physical function, was associated with higher muscle oxidative capacity, even beyond the age of 80.
Why this rating
Small sample size (n=7 athletes) but unique cohort and rigorous histological analysis.
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
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