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Effects of Balance Training Combined with Whole-Body Vibration on Balance and Ankle Function in Adults with Chronic Ankle Instability

  • Journal of the Korean Society of Physical Medicine
  • Abbr : J Korean Soc Phys Med
  • 2026, 21(3), pp.83~92
  • Publisher : The Korean Society of Physical Medicine
  • Research Area : Medicine and Pharmacy > Physical Therapy > Other physical therapy
  • Received : May 6, 2026
  • Accepted : July 7, 2026
  • Published : August 31, 2026

Heng-zhi Guo 1,  Ji-eun Lee 1,  Kim Meung Kwon ORD ID 1

1대구대학교

Accredited

ABSTRACT

PURPOSE: This study examined the synergistic effects of balance training (BT) combined with whole-body vibration (WBV) on the postural stability and ankle function in adults with chronic ankle instability (CAI). METHODS: Thirty participants with chronic ankle instability (CAI) were assigned randomly to three groups (n = 10 each): Experimental Group (EG; WBV + BT), Experimental Group 2 (EG2; WBV), and a control group (CG; BT). The interventions were conducted twice weekly for four weeks. The static balance was measured using BioRescue (surface area and velocity), and the dynamic balance was assessed using a Y-Balance Test (YBT). The functional performance was evaluated using Single-Hop and Up-Down Hop tests. The subjective instability was measured using the Cumberland Ankle Instability Tool (CAIT) and the Foot and Ankle Ability Measure (FAAM). RESULTS: All groups showed post-intervention improvements in most measures. Significant time × group interactions were observed for CAIT, Single-Hop, and Up-Down Hop tests (p < .05). Specifically, the improvement magnitude in EG was significantly greater than in EG2 (p < .05). Nevertheless, although the dynamic and static balance measures showed within-group improvements over time, no significant between-group differences were observed. CONCLUSION: Combined WBV and balance training may be more effective in improving the functional performance and subjective stability in patients with CAI than WBV alone. This multimodal approach may enhance the rehabilitation outcomes by optimizing neuromuscular control.

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