Increased prefrontal cortical activation during challenging walking conditions in persons with lower limb amputation – an fNIRS observational study.
Background: Lower limb amputation (LLA) alters the sensorimotor control systems. Despite the self-reports of increased attention during mobility, the interaction between mobility and cognitive control mechanisms is not fully understood. Objective: Concurrently evaluate walking performance and prefro...
| Publicado en: | Physiotherapy Theory & Practice Vol. 38; no. 2; pp. 255 - 266 |
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| Autores principales: | , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Feb 022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=154608730&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 154608730 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09593985 BCJ jtl: Physiotherapy Theory & Practice issn: 09593985 maglogo: Y pubinfo: dt: Feb 022 vid: 38 iid: 2 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 154608730 145613518 154608730 154608730 10.1080/09593985.2020.1758979 154608730 ppf: 255 ppct: 11 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Increased prefrontal cortical activation during challenging walking conditions in persons with lower limb amputation – an fNIRS observational study. aug: au: Schack, Jette Pripp, aAre Hugo Mirtaheri, Peyman Steen, Harald Güler, Evin Gjøvaag, Terje affil: Department of Occupational Therapy, Prosthetics and Orthotics, Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway sug: subj: Walking Task Performance and Analysis Prefrontal Cortex Physiology Lower Extremity Surgery Amputation Surgical Patients Human Nonexperimental Studies Spectroscopy, Near-Infrared Models, Statistical Comparative Studies Cognition Evaluation Attention Limb Prosthesis Gait Neuroradiography Funding Source Neuropsychological Tests Clinical Assessment Tools Data Analysis Software Descriptive Statistics T-Tests Chi Square Test Post Hoc Analysis Pearson's Correlation Coefficient Male Female Adult Middle Age Aged Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Male Female ab: Background: Lower limb amputation (LLA) alters the sensorimotor control systems. Despite the self-reports of increased attention during mobility, the interaction between mobility and cognitive control mechanisms is not fully understood. Objective: Concurrently evaluate walking performance and prefrontal cortical (PFC) activity in persons with and without LLA during different walking conditions. Methods: Thirty-nine persons with LLA and thirty-three able-bodied controls participated. Walking performance was evaluated using the Figure-of 8-walk-test during three conditions: 1) UW (Usual walking with self-selected walking speed); 2) WCT (walking and carrying a tray with two cups filled with water); and 3) WUT (walking on uneven terrain). PFC activity was assessed using functional near-infrared spectroscopy (fNIRS). Linear mixed models were used to detect changes between groups and between walking conditions within each group. Results: Between-group comparisons showed increased PFC activity in persons with LLA during UW and WUT, and a significant decrease in walking performance during WCT and WUT compared to controls. Within-group comparisons showed increased PFC activity during WUT compared with UW and WCT and an overall difference in walking performance between the conditions (WU > WUT > WCT) in both groups. However, the effect of walking condition on PFC activity and walking performance was not modified by group (P >.1). Conclusion: The results suggest that persons with LLA have increased attentional demands during walking but choose the same cognitive-mobility strategy during challenging walking conditions as able-bodied persons. However, the attentional demands seem to depend on the complexity of the task. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Unknown language: English refInfo: holdings: @attributes: islocal: N |
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