The picture shows Troy, who has quadriplegia due to a C6-C7 spinal cord injury, doing the deltoid press in the palm down position on the UPPERTONE adapted physical education and exercise system. The exercise can also be done in the palm up position.

Doing the deltoid press in palm down and palm up positions emphasizes different muscles. The palm down position stress the middle deltoid and the palm up position emphasizes the anterior deltoid.

The palm up deltoid press is particularly helpful for those with weak triceps as it compensates for weak triceps by stressing the front of the shoulder.