Dr. Paul Williams developed the Williams' flexion exercises to treat low-back pain in women under the age of 40 and men under the age of 50, according to BackTrainer.com. Physical therapists often recommend these exercises to treat back pain when the cause of pain is unknown. Seek medical advice before starting this or any other type of...

Dr. Paul Williams developed the Williams' flexion exercises to treat low-back pain in women under the age of 40 and men under the age of 50, according to BackTrainer.com. Physical therapists often recommend these exercises to treat back pain when the cause of pain is unknown. Seek medical advice before starting this or any other type of...

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