Shoulder pain and cycle to cycle kinematic spatial variability during recovery phase in manual wheelchair users

motor variability;wheelchair propulsion;motor control;rehabilitation;principal component analysis

Jayaraman, Chandrasekaran ; Sosnoff ; Jacob J.

关键词: motor variability;    wheelchair propulsion;    motor control;    rehabilitation;    principal component analysis;   

Others  :  https://www.ideals.illinois.edu/bitstream/handle/2142/50754/Chandrasekaran_Jayaraman.pdf?sequence=1&isAllowed=y

美国|英语

来源: The Illinois Digital Environment for Access to Learning and Scholarship

【 摘 要 】

Wheelchair propulsion plays a significant role in the development of shoulder pain in manual wheelchair users (MWU). However wheelchair propulsion metrics related to shoulder pain are not clearly understood. This investigation examined intra-individual kinematic spatial variability during semi-circular wheelchair propulsion as a function of shoulder pain in MWU. Data from 10 experienced adult MWU with spinal cord injury (5 with shoulder pain; 5 without shoulder pain) was analyzed in this study. Participants propelled their own wheelchairs on a dynamometer at 3 distinct speeds (self-selected, 0.7 m/s, 1.1 m/s) for 3 minutes at each speed. Motion capture data of the upper limbs were recorded. Intra-individual kinematic spatial variability of the steady state wrist motion during the recovery phase was determined using principal component analysis (PCA). The kinematic spatial variability was calculated at every 10% intervals (i.e. at 11 interval points, from 0% to 100%) along the wrist recovery path.