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Go Hard Core: 5 Ab Exercises for a Faster Run

  • Jason Lee

    Ball Crunch

    Lie faceup on a stability ball, knees bent 90 degrees, feet on floor. Put hands behind head with elbows out to sides and crunch up, then lower.

    Source: Study at Barry University in Miami Shores, Florida

  • Jason Lee

    Hip Raise

    Lie faceup on floor with heels on ball, legs extended, arms by sides. Lift hips, forming a diagonal line from heels to shoulders. Hold for 1 count; lower.

  • Jason Lee

    Back Extension

    Lie facedown on ball, knees bent and feet on wall behind you, toes on floor. Bend elbows by sides, bringing fists in front of shoulders. Lift upper body; lower.

  • Jason Lee

    Arm/Leg Reach

    Start on all fours. Slowly extend left arm and right leg at the same time until both are parallel to floor; hold for 1 second. Return to start. Switch sides and repeat to complete 1 rep.

  • Jason Lee

    Russian Twist

    Lie faceup on ball, knees bent, feet on floor. Extend arms toward ceiling and clasp hands. Keeping hips still, rotate upper body to right, then left, to complete 1 rep.

    Originally published in FITNESS magazine, July/August 2009.