Bilateral palmar flexion instability: a complication of wheelchair use

Scapula kinematics and associated impingement risk in manual wheelchair users during propulsion and a weight relief lift

“…Manual wheelchair users (MWU) rely on their upper extremities (UE) for mobility, activities of daily living, and vocation performance. With the primary load bearing role shifting from the lower extremities to the smaller musculature of the UE (Requejo and Mulrouy, Spring, 2008), manual wheelchair users are at a high risk for UE pain and pathology limiting not only their ambulation but all areas of function (Bayley et al, 1987, Gellman et al, 1988a, Gellman et al, 1988b, Nichols et al, 1979, Pennes et al, 1983, Pentland and Twomey, 1991). Shoulder impingement syndrome has been reported as the most common UE pathology in MWU (Bayley et al, 1987, Lee and McMahon, 2002) and is described by Neer (Neer, 1972) as a compromise of the space between the humeral head and the acromial arch affecting the soft tissue contained within.…”