Effect of AFO Design on Walking after Stroke
| Autor: | Joanne K. Gronely, Walter Weiss, Craig J. Newsam, Sara J. Mulroy, Valerie J. Eberly |
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| Rok vydání: | 2010 |
| Předmět: |
Adult
Male musculoskeletal diseases Orthotic Devices medicine.medical_specialty Contracture Video Recording Electromyography Health Professions (miscellaneous) Plantar flexion Foot Joints medicine Humans Range of Motion Articular Gait Stroke Aged medicine.diagnostic_test business.industry Rehabilitation Stroke Rehabilitation Equipment Design Middle Aged musculoskeletal system medicine.disease Orthotic device Biomechanical Phenomena Shoes body regions Treatment Outcome medicine.anatomical_structure Physical therapy Female Ankle medicine.symptom business Range of motion human activities Ankle Joint |
| Zdroj: | Prosthetics & Orthotics International. 34:277-292 |
| ISSN: | 0309-3646 |
| DOI: | 10.3109/03093646.2010.501512 |
| Popis: | This study was conducted to compare the effects of three ankle-foot orthosis (AFO) designs on walking after stroke and determine whether an ankle plantar flexion contracture impacts response to the AFOs. A total of 30 individuals, ranging from 6-215 months post-stroke, were tested in four conditions: shoes only (SH), dorsi-assist/dorsi-stop AFO (DA-DS), plantar stop/free dorsiflexion AFO (PS), and rigid AFO (Rigid). Kinematics, kinetics, and electromyographic (EMG) activity were recorded from the hemiparetic lower extremity while participants walked at a self-selected pace. Gait parameters were compared between conditions and between participants with and without a moderate ankle plantar flexion contracture. All AFOs increased ankle dorsiflexion in swing and early stance. Anterior tibialis EMG was reduced only in the PS AFO. Both PS and Rigid AFOs restricted ankle plantar flexion and increased knee flexion in loading. Peak ankle dorsiflexion in stance and soleus EMG intensity were greatest in the PS AFO. The Rigid AFO tended to restrict dorsiflexion in stance and knee flexion in swing only in participants without a plantar flexion contracture. Individuals without a contracture benefit from an AFO that permits dorsiflexion mobility in stance and those with quadriceps weakness may more easily tolerate an AFO with plantar flexion mobility in loading. |
| Databáze: | OpenAIRE |
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