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Back to Study: The Effects of Varying Glenohumeral Joint Angle on...
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Analysis v1
Strong Opposition

Changing your shoulder angle while doing bicep exercises seems to cause more muscle swelling and strain in the lower part of your bicep right after the workout, especially if you do moves that stretch the muscle.

0
Pro
59
Against

Evidence from Studies

Supporting (0)

0

Community contributions welcome

No supporting evidence found

Contradicting (1)

59

Community contributions welcome

59

The Effects of Varying Glenohumeral Joint Angle on Acute Volume Load, Muscle Activation, Swelling, and Echo-Intensity on the Biceps Brachii in Resistance-Trained Individuals

Randomized Controlled Trial
Human
2019 Sep 4

The study looked at whether changing shoulder angles during bicep curls causes more muscle stress right after exercise, but it didn’t find any real difference in muscle changes between varying and fixed angles.

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

The Effects of Varying Glenohumeral Joint Angle on Acute Volume Load, Muscle Activation, Swelling, and Echo-Intensity on the Biceps Brachii in Resistance-Trained Individuals

Score: 59
DOI: 10.3390/sports7090204

Similar Assertions

When you do bicep curls with your shoulder stretched back, the lower part of your bicep shows more signs of stress on ultrasound right after the workout than when you keep your shoulder neutral.

0
51
86%

Whether you change your shoulder angle or not during bicep curls, your muscles recover at the same speed over the next three days.

51
0
83%

Doing bicep curls with your arm stretched behind you makes the lower part of your bicep feel more strained right after the workout than doing them with your arm at your side.

0
51
83%

Even when you change your shoulder position during bicep curls, you still lift the same total amount of weight — your total workout effort doesn’t go up or down.

51
0
81%

Changing the shoulder angle during bicep curls makes your biceps work harder, even if you're lifting the same total weight — your muscles fire more, according to electrical activity measurements.

59
0
79%