Article

PURPOSE: To evaluate shoulder complex kinematics in persons with chronic upper
extremity (UE) impairments due to stroke and determine if kinematics predicts
motor function based on the Fugl-Meyer Motor Assessment (FMA). METHODS: Sixteen
stroke survivors with chronic UE impairments (age range = 46-80 years, male = 8,
female = 8, mean (SD) 66 (40) months post-stroke) performed the UE portion of the
FMA with the shoulder/elbow subscale (FM_se) documented. Three-dimensional
kinematics of the shoulder complex was collected with the Motion Monitor
(Innsport, Chicago, IL, USA). Participants performed three repetitions of arm
elevation in the frontal, sagittal and self-selected planes. The third repetition
was analyzed. Scapular and humeral kinematics were calculated in the
self-selected plane. Scapulohumeral rhythm was analyzed at peak elevation.
Backward stepwise regression analysis predicted kinematic contributions to the
FM_se. RESULTS: Mean (SD) FM_se score was 25.3 1(10.9). Peak humeral elevation
ranged from 45.6 degrees to 129.2 degrees (median 106.7 degrees ). Scapulohumeral
rhythm was 4.1:1 when humeral elevation ranged from 45 degrees to 50 degrees ,
1.5:1 from 80 degrees to 95 degrees and 2.1:1 from 105 degrees to 130 degrees .
Humeral elevation, scapular upward rotation and scapular internal rotation
predicted 65.4% of FM_se score variability. CONCLUSIONS: Persons with chronic UE
impairments from stroke demonstrated reduced peak elevation and altered
scapulohumeral rhythm. Three predictors of the FM_se were humeral elevation,
scapular upward rotation and scapular internal rotation.

Langue : ANGLAIS