A Preliminary Assessment of Legged Mobility Provided by a Lower Limb Exoskeleton for Persons With Paraplegia
| Autor: | Kevin H. Ha, Michael Goldfarb, Ryan J. Farris, Clare Hartigan, Spencer A. Murray, Hugo A. Quintero |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male Engineering medicine.medical_specialty Movement Physical Exertion Biomedical Engineering Artificial Limbs Orthotics Prosthesis Design Lower limb Article Gait (human) Physical medicine and rehabilitation Heart Rate Internal Medicine medicine Humans Exertion Spinal Cord Injuries Paraplegia business.industry General Neuroscience Rehabilitation medicine.disease Exoskeleton Treatment Outcome Lower Extremity Walk test Gait analysis Physical therapy business human activities |
| Popis: | This paper presents an assessment of a lower limb exoskeleton for providing legged mobility to people with paraplegia. In particular, the paper presents a single-subject case study comparing legged locomotion using the exoskeleton to locomotion using knee-ankle-foot orthoses (KAFOs) on a subject with a T10 motor and sensory complete injury. The assessment utilizes three assessment instruments to characterize legged mobility, which are the timed up-and-go test, the Ten-Meter Walk Test (10 MWT), and the Six-Minute Walk Test (6 MWT), which collectively assess the subject's ability to stand, walk, turn, and sit. The exertion associated with each assessment instrument was assessed using the Physiological Cost Index. Results indicate that the subject was able to perform the respective assessment instruments 25%, 70%, and 80% faster with the exoskeleton relative to the KAFOs for the timed up-and-go test, the 10 MWT, and the 6 MWT, respectively. Measurements of exertion indicate that the exoskeleton requires 1.6, 5.2, and 3.2 times less exertion than the KAFOs for each respective assessment instrument. The results indicate that the enhancement in speed and reduction in exertion are more significant during walking than during gait transitions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|