For lower back and hamstrings
Standing with your feet hip-distance apart, slowly bend at the waist, keeping your legs as straight as possible, until your hands touch the floor about 8 to 12 inches from your feet [A]. Walk your hands out to pushup position [B], then walk your feet in toward your hands. Work up to 2 sets of 8 reps.
Your body should form a straight line from your heels to your head.
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