Report
Gait behavioral and neuromuscular characterization in response to increasing working memory load while walking under optic flow perturbations in young adults
| العنوان: | Gait behavioral and neuromuscular characterization in response to increasing working memory load while walking under optic flow perturbations in young adults |
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| المؤلفون: | Lana, Valentin, Frère, Julien, Cabibel, Vincent, Réguème, Tristan, Lefèvre, Nicolas, Decker, Leslie, M |
| المساهمون: | Mobilités : Vieillissement, Pathologie, Santé (COMETE), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), GIPSA - Analyse et Modification de l'homme en mouvement : biomécanique, cognition, vocologie (GIPSA-MOVE), GIPSA Pôle Sciences des Données (GIPSA-PSD), Grenoble Images Parole Signal Automatique (GIPSA-lab), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP), Université Grenoble Alpes (UGA)-Grenoble Images Parole Signal Automatique (GIPSA-lab), Université Grenoble Alpes (UGA), Normandie Université (NU), This study was funded by the National Agency for Research and Technology (ANRT) and the NOVATEX MEDICAL company |
| المصدر: | https://hal.science/hal-03982144 ; 2023. |
| بيانات النشر: | CCSD |
| سنة النشر: | 2023 |
| المجموعة: | Université Grenoble Alpes: HAL |
| مصطلحات موضوعية: | Gait, Lateral Balance, Muscle activity, Executive functions, Detrended fluctuations analysis (fractal analysis), [SCCO]Cognitive science, [SDV]Life Sciences [q-bio] |
| الوصف: | The precise role of cognitive control on optic flow processing during locomotion has rarely been investigated. Therefore, this study aimed to determine whether coping with unreliable visual inputs during walking requires attentional resources. Twenty-four healthy young adults walked on an instrumented treadmill in a virtual environment under two optic flow conditions: normal (NOF) and perturbed (POF, continuous mediolateral pseudo-random oscillations). Each condition was performed under single-task and dual-task conditions of increasing difficulty (1-, 2-, 3-back). In all conditions, subjective mental workload was estimated (raw NASA-TLX). For kinematic variables, mean, standard deviation, statistical persistence and step-to-step error correction were computed from gait time series in mediolateral and anteroposterior directions. For EMG variables of soleus and gluteus medius , the full width at half maximum and the variance ratio were calculated. Performance on N-back tasks was assessed using mean reaction time and d-prime. Cognitive performance was not affected by simultaneous walking in any optic flow condition. Gait variability was altered under POF compared to NOF, so that young adults sought to counteract those perturbations by adopting an effortful gait control strategy, independently of concurrent working memory (WM) load. Increasing WM load led changes first at the neuromuscular level, then at the behavioral level, with a prioritization of gait control in the mediolateral direction. Interestingly, dual-tasking lowered the effects of POF but in the anteroposterior direction only. These findings and their theoretical implications provide valuable insight into the complex interaction effects of cognitive and visual constraints on gait control during treadmill walking. Highlights - Cognitive performance was preserved during DTW regardless of optic flow condition. - ML POF under DTW increased subjective mental workload. - Young adults counteracted ML POF by adopting an effortful gait control ... |
| نوع الوثيقة: | report |
| اللغة: | English |
| Relation: | BIORXIV: 2022.07.01.498421 |
| DOI: | 10.1101/2022.07.01.498421 |
| الاتاحة: | https://hal.science/hal-03982144 https://hal.science/hal-03982144v1/document https://hal.science/hal-03982144v1/file/2022.07.01.498421v2.full.pdf https://doi.org/10.1101/2022.07.01.498421 |
| Rights: | http://creativecommons.org/licenses/by-nc-nd/ ; info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.7A15CA23 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1101/2022.07.01.498421 |
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