When physical therapist Jim Johnson reviewed the double-blind back-pain studies published in peer-reviewed journals in the past 15 years, he found that about 90 percent of back pain sufferers have underdeveloped multifidus muscles. These muscles connect the spinal vertebrae, and are involved with the back bending and twisting motions. This simple series of exercises with accompanying line drawings will help anyone quickly learn how to strengthen these muscles to prevent and overcome pain. Less
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