Asked by annie
When I bend down, what kind of force is involved? Is it the pulling force of the muscle?
Answers
Answered by
drwls
Bending over is caused by contraction (pulling) of the very large psoas muscles, which are shown here:
http://collinsdc.com/blog/wp-content/uploads/2008/07/psoas.jpg
http://collinsdc.com/blog/wp-content/uploads/2008/07/psoas.jpg
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