When young guys do a tiring arm exercise, they're weaker afterward if their shoulder is bent at 90 degrees compared to when it's straight — their arm strength drops more in the bent position.

33

Pro

0

Against

Evidence from Studies

Supporting (1)

33

Community contributions welcome

33

Effect of shoulder angle on the activation pattern of the elbow extensors during a submaximal isometric fatiguing contraction

Cross-Sectional Study

Human

2010 Oct

The study found that when people did a tiring arm exercise with their shoulder bent, they were weaker afterward than when their shoulder was straight, which 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.

Source Study

Effect of shoulder angle on the activation pattern of the elbow extensors during a submaximal isometric fatiguing contraction

Score: 33

DOI: 10.1002/mus.21717

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