{"title":"Neck muscle vibration and prism adaptation fail to improve balance disturbances after stroke: A multicentre randomised controlled study","authors":"Stephanie Leplaideur , Etienne Allart , Lucie Chochina , Dominic Pérennou , Gilles Rode , François Constant Boyer , Jean Paysant , Alain Yelnik , Karim Jamal , Quentin Duché , Jean-François Morcet , Bruno Laviolle , Benoit Combès , Elise Bannier , Isabelle Bonan","doi":"10.1016/j.rehab.2024.101871","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><p>Pilot studies suggest potential effects of neck muscle vibration (NMV) and prism adaptation (PA) on postural balance disturbances related to spatial cognition.</p></div><div><h3>Objectives</h3><p>To evaluate the effect of 10 sessions of NMV and/or PA on ML deviation. We used the mediolateral centre of pressure position (ML deviation) as a biomarker for spatial cognition perturbation, hypothesising that PA and NMV would improve ML deviation, with a potential synergistic impact when used together.</p></div><div><h3>Methods</h3><p>We conducted a multicentre, single-blind, randomised controlled study. Participants within 9 months of a right-hemisphere supratentorial stroke and with less than 40% body weight supported on the paretic side in standing were randomised into 4 groups (PA, NMV, PA+NMV, or control).</p></div><div><h3>Primary outcome</h3><p>ML deviation at Day 14. Secondary outcomes: force platform data, balance abilities, autonomy, and ML deviation, measured just after the first session (Day 1), at Day 90, and Day 180. A generalised linear mixed model (GLMM) assessed intervention effects on these outcomes, adjusting for initial ML deviation and incorporating other relevant factors.</p></div><div><h3>Results</h3><p>89 participants were randomised and data from 80 participants, mean (SD) age 59.2 (10.2) years, mean time since stroke 94 (61) days were analysed. At Day 14, a weak time x group interaction (<em>P</em> = .001, omega-squared = 0.08) was found, with no significant between-group differences in ML deviation (<em>P</em> = .12) or in secondary outcomes (<em>P</em> = .08). Between-group differences were found on Day 1 (<em>P</em> = .03), Day 90 (<em>P</em> = .001) and Day 180 (<em>P</em> < .0001) regardless of age and stroke-related data. On Day 1, ML deviation improved in both the PA and NMV groups (<em>P</em> = .03 and <em>P</em> = .01). In contrast, ML deviation deteriorated in the NMV+PA group on Day 90 and Day 180 (<em>P</em> = .01 and <em>P</em> = .01).</p></div><div><h3>Conclusions</h3><p>The study found no evidence of any beneficial effects of repeated unimodal or combined sessions of NMV and/or PA on ML deviation after stroke.</p></div><div><h3>Trial registration</h3><p>ClinicalTrials.gov identifier NCT01677091</p></div>","PeriodicalId":56030,"journal":{"name":"Annals of Physical and Rehabilitation Medicine","volume":"67 7","pages":"Article 101871"},"PeriodicalIF":3.9000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Physical and Rehabilitation Medicine","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1877065724000551","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"REHABILITATION","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Pilot studies suggest potential effects of neck muscle vibration (NMV) and prism adaptation (PA) on postural balance disturbances related to spatial cognition.
Objectives
To evaluate the effect of 10 sessions of NMV and/or PA on ML deviation. We used the mediolateral centre of pressure position (ML deviation) as a biomarker for spatial cognition perturbation, hypothesising that PA and NMV would improve ML deviation, with a potential synergistic impact when used together.
Methods
We conducted a multicentre, single-blind, randomised controlled study. Participants within 9 months of a right-hemisphere supratentorial stroke and with less than 40% body weight supported on the paretic side in standing were randomised into 4 groups (PA, NMV, PA+NMV, or control).
Primary outcome
ML deviation at Day 14. Secondary outcomes: force platform data, balance abilities, autonomy, and ML deviation, measured just after the first session (Day 1), at Day 90, and Day 180. A generalised linear mixed model (GLMM) assessed intervention effects on these outcomes, adjusting for initial ML deviation and incorporating other relevant factors.
Results
89 participants were randomised and data from 80 participants, mean (SD) age 59.2 (10.2) years, mean time since stroke 94 (61) days were analysed. At Day 14, a weak time x group interaction (P = .001, omega-squared = 0.08) was found, with no significant between-group differences in ML deviation (P = .12) or in secondary outcomes (P = .08). Between-group differences were found on Day 1 (P = .03), Day 90 (P = .001) and Day 180 (P < .0001) regardless of age and stroke-related data. On Day 1, ML deviation improved in both the PA and NMV groups (P = .03 and P = .01). In contrast, ML deviation deteriorated in the NMV+PA group on Day 90 and Day 180 (P = .01 and P = .01).
Conclusions
The study found no evidence of any beneficial effects of repeated unimodal or combined sessions of NMV and/or PA on ML deviation after stroke.
期刊介绍:
Annals of Physical and Rehabilitation Medicine covers all areas of Rehabilitation and Physical Medicine; such as: methods of evaluation of motor, sensory, cognitive and visceral impairments; acute and chronic musculoskeletal disorders and pain; disabilities in adult and children ; processes of rehabilitation in orthopaedic, rhumatological, neurological, cardiovascular, pulmonary and urological diseases.