Superset with seated dumbbell kickback 

Sets: 4

Reps: 10

Rest: 10secs

Pick a couple of dumbbells and stand with them by your sides, palms facing your body. Keeping your upper body still – that means no swinging – lift the dumbbells out to your side with a slight bend at your elbows. Lift until your arms are parallel to the floor then slowly lower to the start position.