Title :
Reach to grasp kinematics and EMG analysis of C6 quadriplegic subjects
Author :
Jacquier-Bret, J. ; Rezzoug, N. ; Vallier, J.M. ; Tournebise, H. ; Gorce, P.
Author_Institution :
HandiBio Lab. (EA 4322), Univ. du Sud - Toulon - Var, La Garde, France
Abstract :
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 deltoidus 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.
Keywords :
biomechanics; electromyography; kinematics; medical disorders; neurophysiology; 3D arm motion recording; C6 SCI subjects; C6 quadriplegic subjects; EMG analysis; able-bodied subjects; decision making; deltoidus posterior; grasp kinematics; grasping task; kinematics; muscular activity; musculotendinous transfer; pectoralis major; shoulder complex; spinal cord injury; upper extremity movement control; upper limb muscle electrical activity; Adult; Arm; Cervical Vertebrae; Electromyography; Female; Humans; Male; Movement; Muscle Contraction; Muscle, Skeletal; Quadriplegia; Range of Motion, Articular; Task Performance and Analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5334747
