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Effect of Wholebody Vibration Stimulation According to Various Frequencies on Ankle Instability, Ankle Range of Motion and Balance Ability in Adult with Chronic Ankle Instability
J Korean Soc Phys Med 2018;13(1):63-72
Published online February 28, 2018;
© 2018 Korean Society of Physical Medicine.

Yeon-Sang Jin, PT, MS⋅Yoon-Hee Choi, PT, MS1⋅Jae-Kwang Shim, PT, Ph.D⋅Yong-Jun Cha, PT, Ph.D2†

Rehabilitation Center, Daejeon Wellness Hospital
1Department of Physical Therapy, Graduate School, Daejeon University
2Department of Physical Therapy, College of Health and Medical Science, Daejeon University
Received October 23, 2017; Revised October 26, 2017; Accepted November 27, 2017.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
PURPOSE: The aim of this study was to compare the effect of whole body vibration stimulation on ankle instability, ankle range of motion, and balance ability in adult with chronic ankle instability.
METHODS: Forty-five adult with chronic ankle instability were randomly equally allocated theⅠgroup (whole body vibration stimulated at 10 Hz), or the Ⅱ group (20 Hz), or the Ⅲ group (25 Hz). All the participants (male:13/female: 32, age: 26.64±3.14) in this study received whole body vibration therapy for an additional 15 minutes after hot pack and ultrasound three times a week for four weeks. Outcome were measured before and after 4 weeks training.
RESULTS: All the three groups showed significant differences in AII and CAIT after intervention (p<.05). Ⅰ group showed the most significant difference (p<.05). All the three groups also showed significant increase in ankle dorsiflexion and plantar flexion after training (p<.05). Ⅰ group showed greater increase than the other groups in ankle dorsiflexion (p<.05). The X-axis, Y-axis, and fluctuation speed were significantly decreased in the three groups (p<.05), but there was no significant difference between the three groups after the intervention.
CONCLUSION: The findings suggest that the whole body vibration stimulation according to various frequencies is effective for improve ankle instability, ankle range of motion and balance ability in adult with chronic ankle instability. 10 Hz whole body vibration stimulation could help improve ankle instability and ankle range more effectively than other frequencies.
Keywords : Ankle instability, Balance ability, Range of motion, Whole body vibration.

February 2018, 13 (1)
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