how to do Reverse Lunge
Step 1: Stand tall with feet hip-width apart, hands on your hips and shoulders back.
Step 2: Keeping your upper body still and core tight, take one large step back with your right foot, then bend both knees to lower into a lunge, front leg should be parallel to the ground.
Step 3: Press through your left heel and return to start position. Repeat move, this time stepping back with your left foot.