When young women do calf raise exercises until they can't do any more, doing them with bent legs makes the calf muscle grow about twice as much as doing them with straight legs.

42

Pro

0

Against

Evidence from Studies

Supporting (1)

42

Community contributions welcome

42

Muscle Swelling of the Triceps Surae in Response to Straight-Leg and Bent-Leg Calf Raise Exercises in Young Women

Randomized Controlled Trial

Human

2023 Jul 1

The study tested exactly what the claim says - it compared bent-leg to straight-leg calf raises in young women doing exercises until their muscles gave out. The results showed bent-leg raises increased soleus muscle thickness by 15.4% while straight-leg raises only increased it by 7.7%, exactly matching the claim.

Contradicting (0)

0

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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

Muscle Swelling of the Triceps Surae in Response to Straight-Leg and Bent-Leg Calf Raise Exercises in Young Women

Score: 42

DOI: 10.1519/jsc.0000000000004491

Similar Assertions

When young women do calf raises until they can't do any more, doing them with straight legs makes the outer calf muscle grow about twice as much as doing them with bent knees.

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When young women do calf raises until they can't do any more, doing them with straight legs makes the upper calf muscle grow way more than doing them with bent knees (+8.8% vs -0.9%).

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When young women want to strengthen their soleus muscle (the lower calf muscle), doing calf raises with bent knees works better than doing them with straight legs.

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For young women who want to work all three muscles in their calf (the two parts of the gastrocnemius and the soleus), doing calf raises with straight legs works better than doing them with bent knees.

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If you want to grow the inner part of your calf muscle, doing straight-leg calf raises might work better than seated ones.

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