They can also be used for upper limb injuries, especially the shoulder. (sportsinjuryclinic.net)
The article further states that this type of seat cushion may prevent work - related neck and upper limb disorders associated with forward head posture. (necksolutions.com)
Improving upper limb function in this population could have broader implications, such as increased participation in work and social and community activities. (KesslerFoundation.org)