You can do this seated or standing. Keep your back nice and flat. Bend your elbows up and out, keeping your arms nice and straight with your elbows close into your body.
Stand in front of a stable platform. Place one foot on the top of the platform. The ball of your foot will be touching the platform. Your other foot will remain planted on the ground and arms at your sides. Push off from the planted foot to bring it up and onto the platform while simultaneously b...
Lie down on your back. Pick up a weight that you're comfortable with, with your feet flat on the floor. Hold the weights with a hammer grip, almost like you're going to crush your skull. Put your arms up, bending at the elbow, to right beside your eyes. Be very careful not to drop the weights.
Lift the weights upward while inhaling. Your arms are extended, palms facing down, with a slight bend in the elbows to reduce the stress on the joints. Pause briefly when your arms are horizontal to the floor. Lower the dumbbells to the starting position (at the thighs) with a slow and controlled...