The effect of a novel gait retraining device on lower limb kinematics and muscle activation in healthy adults
| Autor: | Andrew McDaid, Cathy M. Stinear, James W. Stinear, Sarah Ward, Lukas Wiedemann |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male 030506 rehabilitation medicine.medical_specialty Biomedical Engineering Biophysics Pilot Projects Electromyography Kinematics 03 medical and health sciences 0302 clinical medicine Gait (human) Physical medicine and rehabilitation medicine Humans Orthopedics and Sports Medicine Gait Mechanical Phenomena medicine.diagnostic_test Gait retraining business.industry Muscles Lower limb kinematics Rehabilitation Overground walking Muscle activation Adaptation Physiological Healthy Volunteers Biomechanical Phenomena body regions Left limb Lower Extremity Female 0305 other medical science business human activities 030217 neurology & neurosurgery |
| Zdroj: | Journal of Biomechanics. 77:183-189 |
| ISSN: | 0021-9290 |
| DOI: | 10.1016/j.jbiomech.2018.07.012 |
| Popis: | The Re-Link Trainer (RLT) is a modified walking frame with a linkage system designed to apply a non-individualized kinematic constraint to normalize gait trajectory of the left limb. The premise behind the RLT is that a user’s lower limb is constrained into a physiologically normal gait pattern, ideally generating symmetry across gait cycle parameters and kinematics. This pilot study investigated adaptations in the natural gait pattern of healthy adults when using the RLT compared to normal overground walking. Bilateral lower limb kinematic and electromyography data were collected while participants walked overground at a self-selected speed, followed by walking in the RLT. A series of 2-way analyses of variance examined between-limb and between-condition differences. Peak hip extension and knee flexion were reduced bilaterally when walking in the RLT. Left peak hip extension occurred earlier in the gait cycle when using the RLT, but later for the right limb. Peak hip flexion was significantly increased and occurred earlier for the constrained limb, while peak plantarflexion was significantly reduced. Peak knee flexion and plantarflexion in the right limb occurred later when using the RLT. Significant bilateral reductions in peak electromyography amplitude were evident when walking in the RLT, along with a significant shift in when peak muscle activity was occurring. These findings suggest that the RLT does impose a significant constraint, but generates asymmetries in lower limb kinematics and muscle activity patterns. The large interindividual variation suggests users may utilize differing motor strategies to adapt their gait pattern to the imposed constraint. |
| Databáze: | OpenAIRE |
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