Optimal frequency of whole body vibration training for improving balance and physical performance in the older people with chronic stroke: A randomized controlled trial

Clin Rehabil. 2022 Mar;36(3):342-349. doi: 10.1177/02692155211050564. Epub 2021 Nov 19.

Abstract

Objective: To explore the optimal frequency of whole-body vibration training for improving the balance and physical performance in older people with chronic stroke.

Design: a single-blind randomized controlled trial.

Setting: Two rehabilitation units in the Wuhan Brain Hospital in China.

Participants: A total of 78 seniors with chronic stroke.

Interventions: Low-frequency group (13 Hz), high-frequency group (26 Hz), and zero-frequency group (Standing on the vibration platform with 0 Hz) for 10 sessions of side-alternating WBV training.

Main measures: The timed-up-and-go test, five-repetition sit-to-stand test, 10-metre walking test, and Berg balance scale were assessed pre- and post-intervention.

Results: Significant time × group interaction effects in five-repetition sit-to-stand test (p = 0.014) and timed-up-and-go test at self-preferred speed (p = 0.028) were observed. The high-frequency group outperformed the zero-frequency group in both five-repetition sit-to-stand test (p = 0.039) and timed-up-and-go test at self-preferred speed (p = 0.024) after 10-sessions training. The low-frequency group displayed only a significant improvement in five-repetition sit-to-stand test after training (p = 0.028). No significant within- or between-group changes were observed in the Berg balance scale and walking speed (p > 0.05). No significant group-difference were found between low-frequency and high-frequency groups. No adverse events were reported during study.

Conclusions: Compared with 13 Hz, 26 Hz had no more benefits on balance and physical performance in older people with chronic stroke.

Keywords: Whole body vibration training; balance; chronic stroke; optimal frequency; physical performance.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Aged
  • Exercise Therapy
  • Humans
  • Physical Functional Performance
  • Postural Balance*
  • Single-Blind Method
  • Stroke*
  • Time and Motion Studies
  • Vibration / therapeutic use