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Why is it that I can do sit-ups with a pillow supporting the small of my back, but can't do the same exercise on a mat?

1 doctor weighed in
Dr. Clive Segil
Orthopedic Surgery

In brief: See below

Abdomenal muscles not strong enough also core muscles to be strengthened.

In brief: See below

Abdomenal muscles not strong enough also core muscles to be strengthened.
Dr. Clive Segil
Dr. Clive Segil
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Dr. Warren Strudwick
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