Effects of Electrical Stimulation and Vitamin D Supplementation on Bone Health Following Spinal Cord Injury.

Subjects will undergo 4.5 months of open kinematic chain resistance training followed by 4.5 months of closed kinematic chain using simple rowing approach

2000IU oral vitamin D supplementation daily for 9 months

Subjects will perform simple passive movement exercise for their legs while sitting in their wheelchairs at their home. The frequency of the training will be twice weekly. .