Validación de un test para valorar la cinemática de propulsión en usuarios en silla de ruedas

Abstract

IntroductionWheelchair users have a high prevalence of shoulder pain due to wheelchair propulsion. The aim of this study was to develop a test to analyze wheelchair propulsion and validate it to determine whether wheelchair propulsion is related to strength and pain in the shoulder joint. Material and methodsA total of 36 wheelchair users performed the Wheelchair Users Shoulder Pain Index, the kinematic wheelchair propulsion test (T-CIDIF) and a maximum isokinetic strength test of the internal and external rotators of the shoulder. The T-CIDIF consisted of a 30-second maximum test performed on rollers in which two linear transducers recorded the movements of each arm, registering the number of propulsions and maximum and mean velocity and power. ResultsNo differences between propulsion variables were observed between the two arms. Most T-CIDIF variables were negatively correlated with the shoulder pain questionnaire (from r=−0.347 to r=−0.469, from P<.05 to P<01). All T-CIDIF variables were correlated with the peak torque, total work, mean power, and mean of the peak torques of the internal and external shoulder rotators (from r=0.390 to r=849, P<.001). ConclusionThe T-CIDIF appears to be a valid tool that is related to pain and strength in the shoulder joints of wheelchair users and could be used in the clinical setting to assess the efficacy of various therapies.