Denise Austin Quotes
Your lower back contains numerous muscles. One group, called the erector spinae, attaches to your spinal column at different points along your back, allowing you to bend it forward and backward and from side to side. Toning these muscles helps prevent back pain, and it also tightens and firms your entire lower back.
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Denise Austin is an American fitness instructor, author, and columnist, and a former member of the President's Council on Physical Fitness and Sports.