Smith Machine Overhead Shoulder Press (OHP) What muscles do Smith Machine Overhead Shoulder Presses (OHP) work? The Smith Machine Overhead Shoulder Press (OHP) is a compound exercise that primary targets your shoulders. It’s a strength exercise that uses push force. How to do the Smith Machine Overhead Shoulder Press (OHP) Benefits of the Smith Machine Overhead Shoulder Press (OHP) Tips for performing the Smith Machine Overhead Shoulder Press (OHP) What equipment is needed to perform Smith Machine Overhead Shoulder Presses (OHP)? What type of exercise is the Smith Machine Overhead Shoulder Press (OHP)? How many reps you should do for Smith Machine Overhead Shoulder Press (OHP)?