Relationship Between the Walking Velocity Relative to the Slip Velocity and the Corrective Response
| Autor: | Moeka Sonoo, Takanori Kokubun, Naohiko Kanemura, Tsutomu Fujino, Keisuke Hirata, Keisuke Kubota, Taku Miyazawa, Hiroki Hanawa |
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| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
0206 medical engineering Biomedical Engineering 02 engineering and technology General Medicine Stride length Base of support 020601 biomedical engineering 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Slip velocity Walking velocity medicine Elderly people Treadmill Range of motion human activities Slipping Mathematics |
| Zdroj: | Journal of Medical and Biological Engineering. 41:25-33 |
| ISSN: | 2199-4757 1609-0985 |
| Popis: | During walking, the slip velocity relative to the center of mass velocity can be one of the determinants of falls. We hypothesized that participants would select their strategy (classified by strategy type and measured by the distance of recovery landing or next forward stepping) according to both walking velocity and stance of legs. This study aimed to assess the relationship between the walking velocity relative to the slip velocity (maximum 1.6 m/s) and the corrective response and evaluated the element of the posture at the moment of slipping associated with the corrective response. Ten healthy young adults showed leading leg perturbation in two isolated velocity conditions during over ground walking (slow: 0.9 m/s, fast: 1.6 m/s) using a built-in, double-belt treadmill. We defined the corrective response to perturbation as the change in the heel marker distance post-perturbation. We examined the postural parameters affecting the difference in corrective response. During fast walking, at a velocity near the maximum slip velocity, all participants overcame slipping and kept walking. During slow walking, at a velocity less than the maximum slip velocity, most of the participants took wide steps or stepped backwards and stopped walking. During slow walking, the step length (r = 0.84, p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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