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Titre : | Focal vibration of the plantarflexor and dorsiflexor muscles improves poststroke spasticity : a randomized single-blind controlled trial (2023) |
Auteurs : | Ying-lun Chen ; Liu-jun Jiang ; Yang-yang Cheng ; Chan Chen ; Jian Hu ; An-jing Zhang ; Yan Hua ; Yu-long Bai |
Type de document : | Article |
Dans : | Annals of Physical and Rehabilitation Medicine (Vol. 66, n° 3, April 2023) |
Article en page(s) : | 101670 |
Note générale : | https://doi.org/10.1016/j.rehab.2022.101670 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Accident vasculaire cérébral (AVC) ; Electromyographie ; Imagerie d'élasticité tissulaire ; Membre inférieur ; Spasticité musculaire ; Vibration |
Résumé : | Background Post-stroke spasticity is a cause of gait dysfunction and disability. Focal vibration (FV) of agonist-antagonist upper limb muscle pairs reduces flexor spasticity; however, its effects on ankle plantarflexor spasticity are uncertain. Objective To assess the effects of focal vibration administered by a trained operator to the ankle plantarflexor and dorsiflexor muscles on post-stroke lower limb spasticity. Methods A randomized, single-blind controlled trial of 64 participants with stroke and plantarflexor spasticity assigned to 3 groups by centralized, computer-generated randomization (1:1:1): 1) physiotherapy alone (CON), 2) physiotherapy+gastrocnemius vibration (FV_GM) and 3) physiotherapy+tibialis anterior vibration (FV_TA). Physiotherapists and assessors were blinded to group assignment. The experimental groups underwent 15, 20-min vibration sessions at 40 Hz. We performed evaluations at baseline and after the final treatment: Modified Ashworth Scale (MAS), Clonus scale, Functional Ambulation Categories (FAC), Fugl-Meyer Assessment - Lower Extremity (FMA_LE), Modified Barthel Index (MBI), and electromyography and ultrasound elastography. Primary outcome was remission rate (number and proportion of participants) of the MAS. Results MAS remission rate was higher in FV_GM and FV_TA than CON groups (CON vs. FV_GM: p=0.009, odds ratio 0.15 [95% confidence interval 0.03-0.67]; CON vs. FV_TA: p=0.002, 0.12 [0.03-0.51]). Remission rate was higher in the experimental than CON groups for the Clonus scale (CON vs. FV_GM: p |
Disponible en ligne : | Oui |
En ligne : | https://www.sciencedirect.com/science/article/pii/S1877065722000434 |