Stand tall with your feet hips-width distance apart. Bend your elbows at your sides, or rest your hands on your hips.
Step forward with your right foot, lowering your hips until both knees are bent at about a 90-degree angle. Keep your front knee directly above your ankle, and lower your left knee to just above the floor.
Keep the weight in your heels as you push back to the starting position.
Repeat stepping with your left foot this time, completing one rep.
Complete as many lunges as you can for 40 seconds. Rest for 20.
