Variability of Human Gait: Effect of Backward Walking and Dual-Tasking on the Presence of Long-Range Autocorrelations
| العنوان: | Variability of Human Gait: Effect of Backward Walking and Dual-Tasking on the Presence of Long-Range Autocorrelations |
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| المؤلفون: | Benjamin Bollens, Thibault Warlop, Thierry Lejeune, Frédéric Crevecoeur, Christine Detrembleur |
| المصدر: | Annals of Biomedical Engineering. 42:742-750 |
| بيانات النشر: | Springer Science and Business Media LLC, 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Adult, Male, medicine.medical_specialty, Biomedical Engineering, Poison control, STRIDE, Motor control, Walking, Mental calculation, Young Adult, Cognition, Physical medicine and rehabilitation, Gait (human), Duration (music), medicine, Physical therapy, Range (statistics), Humans, Female, Treadmill, Gait, human activities, Mathematics |
| الوصف: | Information from the central and peripheral nervous systems is continuously integrated to produce a stable gait pattern. However, stride duration fluctuates in a complex manner in healthy subjects, exhibiting long-range autocorrelations that can span over hundreds of consecutive strides. The present study was conducted to explore the mechanisms controlling the long-term fluctuation dynamics of gait. In the first part of the study, stride duration variability was evaluated on a treadmill during forward (FW) and backward walking (BW). Despite the modification of the biomechanical constraints imposed on the locomotor system, the characteristics of the long-range autocorrelations remained unchanged in both modes of locomotion (FW: H = 0.79 ± 0.04 and α = 0.58 ± 0.13; BW: H = 0.79 ± 0.11 and α = 0.53 ± 0.25). In the second part of the study, stride duration variability was assessed while the subjects were performing a dual-task paradigm that combined gait and mental calculation. The long-term variability of stride duration was similar during usual walking (H = 0.80 ± 0.06 and α = 0.57 ± 0.13) and in dual-tasking (H = 0.77 ± 0.06 and α = 0.52 ± 0.16), whereas walking altered the performance of the cognitive task. Hence, the biomechanical and cognitive interferences imposed in the present study were not sufficient to induce a modification of the long-range autocorrelations highlighted in walking variability. These observations underline the robustness of the long-range autocorrelations. |
| تدمد: | 1573-9686 0090-6964 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fccc0a59930fd7092548e1ad10d4dd1Test https://doi.org/10.1007/s10439-013-0961-9Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....8fccc0a59930fd7092548e1ad10d4dd1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15739686 00906964 |
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