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    • Lie on your back with your knees bent.
    • "Brace" your stomach-tighten your muscles by pulling in and imagining your belly button moving toward your spine. You should feel like your back is pressing to the floor and your hips and pelvis are rocking back.
    • Hold for about 6 seconds while breathing smoothly.
    • Repeat 8 to 12 times.

    ByHealthwise Staff
    Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine
    Specialist Medical ReviewerJoan Rigg, PT, OCS - Physical Therapy

    Current as ofJune 4, 2014

    WebMD Medical Reference from Healthwise

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    Ensure you're exercising hard enough to get a good workout, but not strain your heart.

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