Manual wheelchair pushrim biomechanics and axle position

摘要: Abstract Boninger ML, Baldwin M, Cooper RA, Koontz A, Chan L. Manual wheelchair pushrim biomechanics and axle position. Arch Phys Med Rehabil 2000;81:608-13. Objective: The of propulsion have been linked to upper extremity injury. Specifically, prior studies correlated increased median nerve dysfunction with increasing frequency a higher rate rise the resultant, or total, force. Despite this link, there is little research on effect setup biomechanics. objective study was determine rear position relative shoulder Design: Case series. Setting: Biomechanics laboratory. Participants: Forty individuals paraplegia who use manual wheelchairs for mobility. Intervention: Subjects propelled their own dynamometer at two different steady-state speeds going from dead stop maximum speed. Bilateral biomechanical data were obtained using force- moment-sensing motion analysis system. Main Outcome Measures: Position rest both horizontal (XPOS) vertical (YPOS), variables including propulsion, peak resultant force, planar moment, push angle. Partial correlation coefficients between calculated. Results: After controlling subject characteristics, XPOS significantly ( p Conclusion: Specific parameters known correlate injuries found be related shoulder. Providing users adjustable then fitting user can improve likely reduce risk © 2000 by American Congress Rehabilitation Medicine Academy Physical