Sit on an exercise ball with your feet flat on the ground and your knees bent at a 90-degree angle.
Hold a dumbbell with one hand and extend your arm straight up above your chest.
Slowly lower the dumbbell behind your head while keeping your arm straight.
Pause for a moment, then raise the dumbbell back to the starting position.
Repeat for the desired number of repetitions, then switch arms.
Activation
Chest
PrimarySets
3–5
Reps
8–12
Rest
60s