Reps: 15 on each leg
How to do it: Stand with your feet together, holding dumbbells. Take a wide step out to the side with your right leg, bending your knee and reaching your arms to the ground on either side of your right foot. Push off your right foot and bring your body upright, ‘jumping’ off the ground with the right leg, landing in your side lunge position.
Form tip: Focus on powerfully pushing out of your lunge, and maintain proper alignment with your knee during your landing.