Shoulder Magnetic Resonance Imaging Abnormalities, Wheelchair Propulsion, and Gender

摘要: Abstract Boninger ML, Dicianno BE, Cooper RA, Towers JD, Koontz AM, Souza AL. Shoulder magnetic resonance imaging abnormalities, wheelchair propulsion, and gender. Arch Phys Med Rehabil 2003;84:1615–20. Objective To investigate the relationship between pushrim forces progression of shoulder injuries in manual users. Design Longitudinal case series. Setting Biomechanics laboratory (MRI) facility at a Veterans Health Administration medical center university hospital, respectively. Participants Fourteen individuals with spinal cord injury (8 men, 6 women) who used wheelchairs. Intervention Subjects propelled their own wheelchairs on dynamometer 0.9 1.8m/s. Bilateral biomechanical data were obtained by using force moment sensing pushrims time 1. MR images also completed 2 occasions, 1 and, approximately years later, 2. Main outcome measures The peak coordinate system calculated, weight normalized averaged over 5 strokes (presented as % body weight). MRI abnormalities graded summated scale. Differences scores times calculated. Results divided into groups based change score. Seven subjects group worsening (MRI+; mean, 8.14 points; range, 5–16), 7 improving or unchanging (MRI−; −1.00 point; −5 to 1). There was no significant difference respect age, mass index, from injury. significantly more women MRI+ (6 women, man) than MRI− (7 men) ( P =.001). greater weight-normalized radial force, directed toward axle 1, propel each speed =.028); 1.8m/s (mean 6.6%±1.2%) =.023) 4.1%±2.2%). In separate analysis, found higher force. A logistic regression increased risk findings time. Conclusion Individuals percentage Most people this women. Clinicians should instruct users effective propulsion techniques pay particular attention use Reducing during may minimize likelihood developing injuries.