Double-leg abdominal press variations

These variations of the double-leg abdominal press also build your core strength:

• Opposite hands on opposite knees. Place each hand on your opposite knee, toward the inside of your knee (top illustration). Your arms will cross over each other. Push your hands against your knees while pulling your knees toward your hands. Hold for three deep breaths. Repeat.
• Hands on outside of knees. Place your hands along the sides of your knees (bottom illustration). Use your hands to push your knees inward. At the same time, create resistance by pushing your knees away from the center. Hold for three deep breaths. Repeat.