Planks are deceptively hard, but "watching your form will result in harnessing almost all the muscles you need to hit in order to achieve fat loss," Kendall said.
- Start in a standard plank position with your feet touching and your hands supporting your upper body.
- Using your abs, jump your feet to the right, bringing your knees toward your right elbow. Allow your body to twist to the right to accomplish this movement.
- Jump your legs back to the starting position, and repeat this move on the opposite side.
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