The Claim
Moderately strong correlations exist between motor unit size (macro EMG amplitude) and recruitment threshold in both young and older adults across both first dorsal interosseous and tibialis anterior muscles, suggesting preservation of the size principle of motor unit recruitment in older adults.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
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.
See the scientific wording
Moderately strong correlations exist between motor unit size (macro EMG amplitude) and recruitment threshold in both young and older adults across both first dorsal interosseous and tibialis anterior muscles, suggesting preservation of the size principle of motor unit recruitment in older adults.
What the research says
1 studyThe 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.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.