Association Between Altered Hip Extension and Kinetic Gait Variables
| Autor: | Ellie Louise Miller, Sarah Elizabeth Frye, Katherine Leigh Huey, Elizabeth C. Wonsetler, Mark G. Bowden |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
030506 rehabilitation
medicine.medical_specialty business.industry Rehabilitation Work (physics) Physical Therapy Sports Therapy and Rehabilitation Kinematics Gait Preferred walking speed 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation medicine.anatomical_structure medicine Ankle Treadmill 0305 other medical science Range of motion Cadence business 030217 neurology & neurosurgery |
| Zdroj: | American Journal of Physical Medicine & Rehabilitation. 97:131-133 |
| ISSN: | 1537-7385 0894-9115 |
| DOI: | 10.1097/phm.0000000000000840 |
| Popis: | Kinematic and kinetic outcome measures are tightly linked in walking. Although altering motor output is a major goal of gait rehabilitation, little is understood regarding the relationship between altering a single kinematic variable and kinetic outcome changes. We designed a strategy to isolate hip extension alterations during walking on a treadmill to assess the change in kinetic outcomes. Ten healthy individuals walked on an instrumented split-belt treadmill with motion capture to calculate hip extension and kinetic outcomes at the following five different randomized cadences: self-selected cadence, self-selected ± 10%, and self-selected ± 20%. The treadmill speed was held constant at the individual's self-selected walking speed, forcing cadence changes to result in successful alterations to hip extension, varying 8.3 degrees from the self-selected -20% to +20% cadence conditions. Kinetic outcomes demonstrated similar alterations. Hip extension changes at each cadence significantly correlated with kinetic changes in propulsive impulse (r = 0.852, P < 0.001), peak ankle power (r = 0.473, P = 0.002), and ankle plantarflexion work (r = 0.762, P < 0.001). These results demonstrate that kinetic outcomes are highly alterable in response to a kinematic gait change. This clinically relevant finding highlights the potential to improve motor output in individuals during rehabilitation by altering gait patterns to achieve more optimal limb positions. |
| Databáze: | OpenAIRE |
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