Sit Ups: Sit ups can injure the lower back if not performed properly and if you have not conditioned your back muscles. Have a personal trainer evaluate your fitness level and recommend a program for strengthening your trunk.
Answered 5/29/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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