Research Article  |   March 2012
Pilot Comparative Study of Unilateral and Bilateral Robot-Assisted Training on Upper-Extremity Performance in Patients With Stroke
Author Affiliations
  • Chieh-Ling Yang, MS, is Research Assistant, Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, Chang Gung University, Taoyuan, Taiwan
  • Keh-Chung Lin, ScD, OTR, is Professor and Chair, School of Occupational Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan, and Director, Division of Occupational Therapy, Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Taipei, Taiwan
  • Hsieh-Ching Chen, PhD, is Professor, Department and Graduate Institute of Industrial Engineering and Management, National Taipei University of Technology, Taipei, Taiwan
  • Ching-Yi Wu, ScD, OTR, is Professor and Chair, Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, Chang Gung University, 259 Wen-hwa 1st Road, Kwei-shan, Taoyuan, Taiwan; cywu@mail.cgu.edu.tw
  • Chia-Ling Chen, MD, PhD, is Director, Division of Pediatric Rehabilitation, Chang Gung Memorial Hospital, and Professor and Chair, Graduate Institute of Early Intervention, Chang Gung University, Taoyuan, Taiwan
Article Information
Hand and Upper Extremity / Musculoskeletal Impairments / Neurologic Conditions / Stroke / Rehabilitation, Disability, and Participation
Research Article   |   March 2012
Pilot Comparative Study of Unilateral and Bilateral Robot-Assisted Training on Upper-Extremity Performance in Patients With Stroke
American Journal of Occupational Therapy, March/April 2012, Vol. 66, 198-206. doi:10.5014/ajot.2012.003103
American Journal of Occupational Therapy, March/April 2012, Vol. 66, 198-206. doi:10.5014/ajot.2012.003103
Abstract

We compared a unilateral robot-assisted training protocol (URTP) and a bilateral robot-assisted training protocol (BRTP) to study their differential effects. We recruited 21 patients with stroke who received 90–105 min of therapy 5 days/wk for 4 wk. Participants in the URTP and BRTP groups practiced forearm pronation and supination and wrist flexion and extension in a simultaneous manner with the Bi-Manu-Track. The control group received standard rehabilitation. Clinical measures included the Fugl-Meyer Assessment, the Medical Research Council instrument, grip strength, and the Modified Ashworth Scale to assess motor impairment, muscle power, muscle strength, and spasticity, respectively. The pilot study indicated that the URTP and BRTP might have differential benefits for movement improvement. URTP might be a more compelling approach to improving upper-limb motor impairment, muscle power, and strength at the distal joints than BRTP, whereas BRTP could be an optimal approach to improving proximal muscle power.