A single-leg squat is a strength training exercise that targets the muscles in the legs, particularly the quadriceps, hamstrings, and glutes. It involves balancing on one leg while lowering the body into a squat position, then returning to a standing position. This exercise helps improve balance, stability, and overall leg strength. To perform a single-leg squat, stand on one leg with the other leg extended in front of you. Slowly bend the standing leg's knee and lower your body while keeping the extended leg off the ground. Aim to keep your chest up and back straight throughout the movement.