correlational
Analysis v1
Strong Support
This research suggests that in both younger and older people, the way muscles activate their fibers follows the same basic rule: smaller muscle fibers get called into action before bigger ones. This pattern stays consistent as we age.
20
0
Evidence from Studies
Supporting (1)
20
Community contributions welcome
20
Relationships between motor unit size and recruitment threshold in older adults: implications for size principle
Cross-Sectional Study
Human
2009 AugThe study looked at the same thing as the claim—how muscle units work in young and older people—and found the same pattern, so it supports the claim.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.