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Step 1
Prop your forearms on a standing vertical bench and grasp the handles with both hands.
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Step 2
Inhale, contract your abs, bend your knees and lift your thighs as close to your chest as possible.
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Step 3
Lower your legs back toward the ground slowly while you keep your abs contracted. Control the descent as much as possible.
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Step 4
Exhale. Repeat Steps 1 through 3 ten times or until your abdominal muscles are a little bit tired.
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Step 5
Take a short break, and then repeat Steps 1 through 5 twice.







