The purpose of this study is to determine if a shoulder exercise program can prevent the onset of shoulder pain and improve community participation in persons who have a spinal cord injury (SCI). Upon entry into the study patients will have pain-free shoulders and will be followed for 3 years to determine rate of shoulder pain development. Patients will learn a simple shoulder home exercise program and will be instructed on techniques to protect their shoulder during wheelchair propulsion, transfers and activities of daily living. Patients will be instructed to perform the home exercise program 3 days per week. Two types of treatment (training) delivery approaches that have been documented to reduce chronic shoulder pain will be compared. The rate of shoulder pain development for the two groups will be compared to the rate of shoulder pain development in the historical control group. The investigators hypothesize that the rate of shoulder pain development will be lower in the experimental treatment groups compared to the historical control group. Any differences between the two treatment delivery approaches for the experimental treatment groups will help to provide guidelines for the most effective delivery approach of a shoulder pain prevention program.