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I have been suffering with lower back pain for sometime. I can often feel it when running but find it hurting more when doing abdominal work to the point where I have to stop. Crunches are fine, but when i attempt to brings my legs up and lower them back down my back really hurts causing it to arch.
I have heard that a weak core can cause a bad lower back and also heard that if your hamstrings are tight then this could be connected to lower back pain.
Can anyone recommend any good strenghtening exercises which may help?