Dynamic Asymmetries Do Not Match Spatiotemporal Step Asymmetries during Split-Belt Walking
| Autor: | Chiara Malloggi, Stefano Scarano, Luigi Tesio, Valeria Cerina, Viviana Rota, Luigi Catino |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
split-belt treadmill
030506 rehabilitation medicine.medical_specialty Physics and Astronomy (miscellaneous) General Mathematics Lower limb rehabilitation 03 medical and health sciences walking 0302 clinical medicine Physical medicine and rehabilitation Computer Science (miscellaneous) medicine QA1-939 Treadmill Mathematics Work (physics) Stride length Hemiparesis Rehabilitation research medicine.anatomical_structure Chemistry (miscellaneous) medicine.symptom Ankle 0305 other medical science Stance time human activities 030217 neurology & neurosurgery asymmetry |
| Zdroj: | Symmetry, Vol 13, Iss 1089, p 1089 (2021) Symmetry Volume 13 Issue 6 |
| ISSN: | 2073-8994 |
| Popis: | While walking on split-belt treadmills (two belts running at different speeds), the slower limb shows longer anterior steps than the limb dragged by the faster belt. After returning to basal conditions, the step length asymmetry is transiently reversed (after-effect). The lower limb joint dynamics, however, were not thoroughly investigated. In this study, 12 healthy adults walked on a force-sensorised split-belt treadmill for 15 min. Belts rotated at 0.4 m s−1 on both sides, or 0.4 and 1.2 m s−1 under the non-dominant and dominant legs, respectively. Spatiotemporal step parameters, ankle power and work, and the actual mean velocity of the body’s centre of mass (CoM) were computed. On the faster side, ankle power and work increased, while step length and stance time decreased. The mean velocity of the CoM slightly decreased. As an after-effect, modest converse asymmetries developed, fading within 2–5 min. These results may help to decide which belt should be assigned to the paretic and the unaffected lower limb when split-belt walking is applied for rehabilitation research in hemiparesis. |
| Databáze: | OpenAIRE |
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