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Effects of the use of anchor systems in the rehabilitation of dynamic balance and gait in individuals with chronic dizziness of peripheral vestibular origin: a single-blinded, randomized, controlled clinical trial
Coelho AR, Fontes RC, Moraes R, Barros CGC, de Abreu DCC
Archives of Physical Medicine and Rehabilitation 2020 Feb;101(2):249-257
clinical trial
8/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

OBJECTIVE: To assess the effectiveness of the anchors in the balance rehabilitation of participants with chronic peripheral vestibulopathy who failed to respond positively to conventional rehabilitation for dynamic balance and gait. DESIGN: Assessor-blind, randomized controlled trial. SETTING: Department of Otoneurology and Laboratory of Assessment and Rehabilitation of Equilibrium. PARTICIPANTS: Women with chronic dizziness of peripheral vestibular origin (N = 42), who continued to show otoneurologic symptoms for more than 6 months after starting classic vestibular rehabilitation, with no clinical improvement observed. INTERVENTIONS: Participants were randomly assigned to receive a clinical intervention with the anchor system, a clinical intervention without the anchor system, or no intervention or anchor system. The intervention was based on multi-sensory exercises for 6 weeks, twice a week, totaling 12 sessions, in groups of up to 4 participants, with an average time of 40 minutes per session. MAIN OUTCOME MEASURES: The primary outcome was functional balance as assessed by the short version of the Balance Evaluation Systems Test. The secondary outcomes were gait parameters of step width in meters, step length in meters, and gait speed in meters per second. The measures were assessed preintervention and postintervention, and after a 3-month follow-up period. RESULTS: The proposed intervention was beneficial for dizziness, balance, and gait for both groups studied. At the 3-month follow-up, only the group that used anchors retained the benefits related to the physical aspects of dizziness, balance, and gait. CONCLUSIONS: The present study found that the proposed intervention protocol, with or without the use of anchors, was beneficial for improving the dizziness, balance, and gait. However, retention of the benefits achieved through the exercise protocol was observed only for those using the anchor system, which promotes the use of haptic information. The use of anchors was effective, in short protocols (12 wk), with maintenance of results after 3 months.

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