Research
Hormonal
Skeletal muscle mass loss with advancing age is primarily driven by anabolic resistance (blunted muscle protein synthesis response to protein and exercise) rather than increased protein breakdown, with losses accelerating after the 7th decade of life.
Focus on maintaining muscle mass through regular resistance exercise and adequate protein intake, especially as you enter your 60s and beyond. The rate of loss accelerates significantly after age 70, making early and consistent intervention critical to preserving independence and healthspan.
GoodSupportsHIGH confidence
it appears as though age-associated declines in SKM mass are primarily driven by alterations in MPS, with the same appearing to be true for inactivity-induced atrophy... the muscle protein synthetic response to both protein feeding and resistance exercise (RET; the most potent form of contractile activity to stimulate MPS) is blunted in older age.
Why this rating
Based on a comprehensive review of multiple longitudinal and cross-sectional studies.
Source
Skeletal muscle dysfunction with advancing age
Pardeep Pabla et al. · Clinical Science · 2024
DOI 10.1042/cs20231197
narrative_reviewCited 28×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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