MUSCLES ENGAGED Chest Strengthening the chest muscles will help you push things easily and effortlessly. The muscles in your chest help stabilize your shoulder joint, which reduces your vulnerability shoulder joint injuries. Working your chest muscles also has an aesthetic factor (body contouring). Shoulders The shoulder is the most movable joint in the body. However, it is an unstable joint because of the range of motion allowed. This instability increases the likelihood of joint injury, often leading to a degenerative process in which tissues break down and no longer function well. Equipment Used Incline Bench The incline bench is an adjustable bench used in weight training. The incline bench is most commonly used during barbell and dumbbell exercises. Dumbbells The dumbbell, a type of free weight, is a piece of equipment used in weight training. It can be used individually or in pairs (one for each hand). Dumbbells vary in weight from 3lbs. up to 150lbs. Exercise Instructions Step 1 Sitting on an incline bench, raise the dumbbells to s 90 degree angle at the elbow joint. Step 2 While exhaling, push the dumbbells straight up by contracting the chest muscles until they nearly touch in the center of your chest. Step 3 Slowly lower the dumbbells back down to the starting position and repeat action.