mechanistic
Analysis v1
Strong Support
When young guys do certain shoulder exercises without moving their arms, their brain activates muscle units from different shoulder muscles together in specific teams, depending on the task — kind of like a coordinated crew, not just one muscle at a time.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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Muscles within muscles: Coordination of 19 muscle segments within three shoulder muscles during isometric motor tasks.
Cross-Sectional Study
Human
2007 FebThe study found that when people do specific shoulder tasks, muscles all around the shoulder work together in customized teams, not just the ones you’d expect—supporting the idea that the body organizes muscle use based on what the task requires.
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.