Reach to grasp kinematics and EMG analysis of C6 quadriplegic subjects.
The aim of the present study was to assess the kinematics and the muscular activity of the upper limb of subjects suffering from a spinal cord injury (SCI) at the C6 level during a grasping task. Data were compared to a control group composed of able-bodied subjects. The electrical activity of six major upper limb muscles and 3D motion of the arm were recorded. Results showed higher relative muscular solicitation for C6 patients especially for deltoïdus posterior and the pectoralis major and modifications of the range of motion of the corresponding joint angles. It appeared that, for C6 SCI subjects, the role of shoulder complex is highly relevant to initiate and control upper extremity movement, and so is important for their autonomy. Such data may be used to help clinician in decision making, e.g. for reconstructive surgery by musculotendinous transfer.
Jacquier-Bret
J
J
HandiBio laboratory (EA 4322), Université du Sud-Toulon-Var, Avenue de léUniversité BP 20132, 83957 La Garde CEDEX, France. jacquier@univ-tln.fr
Rezzoug
N
N
Vallier
J M
JM
Tournebise
H
H
Gorce
P
P
D000328:Adult; D001132:Arm / Q000503:physiopathology*; D002574:Cervical Vertebrae; D004576:Electromyography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D009068:Movement; D009119:Muscle Contraction; D018482:Muscle, Skeletal / Q000503:physiopathology*; D011782:Quadriplegia / Q000503:physiopathology*; D016059:Range of Motion, Articular; D013647:Task Performance and Analysis