Slide show: Core-strength exercises with a fitness ball
Photo of woman doing bridge on fitness ball
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To work various core muscles in combination for better core strength, try a bridge with the fitness ball:

  • Lie on your back with your legs resting on top of the ball.
  • Tighten your abdominal muscles.
  • Raise your hips and buttocks off the floor into a bridge (A). Hold for three deep breaths. This works your core muscles and the muscles along your backside — the gluteal muscles and hamstrings — as they contract to keep you in place.
  • Return to the start position and repeat.
  • For added challenge, raise your right leg off the ball (B). Repeat with your left leg.
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