Biomechanical evaluation of wrist-driven flexor hinge orthosis in persons with spinal cord injury
| Autor: | Yeoun-Seung Kang, Yoon Ghil Park, Hyung-Soon Park, Bum-Suk Lee |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male Orthotic Devices medicine.medical_specialty Hinge Wrist Quadriplegia Young Adult Physical medicine and rehabilitation medicine Humans Pinch Strength Muscle Strength Muscle Skeletal Tetraplegia Spinal cord injury Spinal Cord Injuries Hand function business.industry Rehabilitation Biomechanics Middle Aged Hand medicine.disease Biomechanical Phenomena body regions medicine.anatomical_structure Cervical Vertebrae Physical therapy Female business |
| Zdroj: | Journal of Rehabilitation Research and Development. 50 |
| ISSN: | 1938-1352 0748-7711 |
| Popis: | The wrist-driven flexor hinge orthosis (WDFHO) is a device used to restore hand function in persons with tetraplegic spinal cord injury by furnishing three-point prehension. We assessed the effectiveness and biomechanical properties of the WDFHO in 24 persons with cervical 6 or 7 tetraplegia who have severely impaired hand function. This study introduces a mechanical operating model to assess the efficiency of the WDFHO. Experimental results showed that pinch force increased significantly (p < 0.001) after using the WDFHO and was found to positively correlate with the strength of wrist extensor muscles (r = 0.41, p < 0.001). However, when the strength of the wrist extensors acting on the WDFHO was greater, the reciprocal wrist and finger motion that generates three-point prehension was less effective (r = 0.79, p < 0.001). Reliable and valid biomechanical evaluation of the WDFHO could improve our understanding of its biomechanics. |
| Databáze: | OpenAIRE |
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