With five decades of experience, Shepherd Center provides world-class clinical care, research, and family support for people experiencing the most complex conditions, including spinal cord and brain injuries, multi-trauma, traumatic amputations, stroke, multiple sclerosis, and pain. PHYSICAL DEMANDS: Sedentary work involves sitting most of the time but may involve walking or standing for brief periods of time or exerting up to 15 pounds of force occasionally or a negligible amount of force frequently to lift, carry, push, pull, or otherwise move objects, including the human body.