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An upper extremity kinematic model for evaluation of hemiparetic stroke. J Biomech 2006;39(4):681-8



Pubmed ID




Scopus ID

2-s2.0-31344466554 (requires institutional sign-in at Scopus site)   111 Citations


Quantification of rehabilitation progress is necessary for accurately assessing clinical treatments. A three-dimension (3D) upper extremity (UE) kinematic model was developed to obtain joint angles of the trunk, shoulder and elbow using a Vicon motion analysis system. Strict evaluation confirmed the system's accuracy and precision. As an example of application, the model was used to evaluate the upper extremity movement of eight hemiparetic stroke patients with spasticity, while completing a set of reaching tasks. Main outcome measures include kinematic variables of movement time, range of motion, peak angular velocity, and percentage of reach where peak velocity occurs. The model computed motion patterns in the affected and unaffected arms. The unaffected arm showed a larger range of motion and higher angular velocity than the affected arm. Frequency analysis (power spectrum) demonstrated lower frequency content for elbow angle and angular velocity in the affected limb when compared to the unaffected limb. The model can accurately quantify UE arm motion, which may aid in the assessment and planning of stroke rehabilitation, and help to shorten recovery time.

Author List

Hingtgen B, McGuire JR, Wang M, Harris GF


Gerald Harris PhD Director in the Orthopaedic Research Engineering Center (OREC) department at Marquette University
John R. McGuire MD Professor in the Physical Medicine and Rehabilitation department at Medical College of Wisconsin
Mei Wang PhD Associate Professor in the Orthopaedic Surgery department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Biomechanical Phenomena
Computer Simulation
Diagnosis, Computer-Assisted
Middle Aged
Models, Biological
Movement Disorders
Range of Motion, Articular
Upper Extremity