Since sustaining a back injury in January 2012 which caused compression fractures of T11,T12 and L1 and much disc damage in lumbar region, it has been increasingly difficult to keep my muscles strong. Particularly in my arms and legs. I have been afraid of most weight bearing exercises. My only form of exercise now is walking and stretches. Does anyone have any stories to share as to how they were able to keep muscle tone in their arms and legs while "protecting" their backs.