Warmup, Exercise 2: Alternating Side Lunge Start with your feet directly under your hips. Step your right foot wide to the side coming into a lunge. Your right knee shouldn't go beyond your right toes. Keep your chest lifted and your weight in your heels. Push into your right foot to return to standing. Repeat on the other side, lunging to the left. This counts as one rep. Continue for one minute. Image Source: POPSUGAR Photography