If you train one leg of an older adult with light weights and leave the other leg alone, scientists can tell whether that person’s muscles grow in response — and use that to figure out who benefits...
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If you train one leg of an older adult with light weights and leave the other leg alone, scientists can tell whether that person’s muscles grow in response — and use that to figure out who benefits...
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A within-subject unilateral resistance training design can effectively classify older adults as responders or nonresponders to low-volume training based on changes in muscle hypertrophy measured by MRI.
When older adults do more sets of resistance exercises, the physical stress on their muscles turns on a molecular switch called mTOR, which then activates p70S6K — this helps their muscle cells make more proteins, leading to bigger muscles over time. This is why some people don’t grow muscles with just one set of exercises, but do grow them when they do four sets — as shown by MRI scans measuring muscle size in 10.1152/japplphysiol.00670.2023.
What the research says
Supports
1 study
Study: Higher resistance training volume offsets muscle hypertrophy non-responsiveness in older individuals.
This study provides evidence supporting the claim.
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0 studies
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies