The Side Lunge works your abductors (helps to move your leg away from your body from a midline), your adductors (moves your leg back towards your body), glutes, hamstrings and quadriceps.

Start with your legs wide apart, bend your left leg bringing yourself down, keeping your left foot flat on the floor allowing your right foot's toes to come up off the floor. You should go down as low as feels comfortable whilst keeping the left foot flat on the floor. You can place your arms wherever feels comfortable, I would suggest placing them on your hips or out in front of you for balance.