HOW: Start on your back with your knees bend and slightly spread apart. Tighten up your stomach first, then your glutes. Next, drive your heels into the ground and lift your hips up towards the ceiling. At the end position your knee, hip, and...

HOW: Start on your back with your knees bent and slightly spread apart. Tighten up your stomach first, then your glutes. Next, drive your heels into the ground and lift your hips up towards the ceiling. At the end position your knees, hips, and...

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