Effects of Vibration Training with Adjusted Frequency on Functional Ankle Instability
10.16156/j.1004-7220.2020.06.06
- VernacularTitle:变频振动训练对功能性踝关节不稳的影响
- Author:
Xiaojuan GAO
1
;
Zhaowei CHU
2
;
Wenyan LI
3
;
Yali HOU
1
;
Rui MA
1
;
Junping LI
4
Author Information
1. School of Physical Education, Zhengzhou University (Main Campus)
2. Beijing Key Laboratory of Rehabilitation Technical Aids for Old-Age Disability, Key Laboratory of Human Motion Analysis and Rehabilitation Technology of the Ministry of Civil Affairs, National Research Center for Rehabilitation Technical Aids
3. Department of Bone Joint Rehabilitation, the Fifth Affiliated Hospital of Zhengzhou University
4. School of Sport Science, Beijing Sport University
- Publication Type:Journal Article
- Keywords:
functional ankle instability (FAI);
vibration training;
explosive force;
balance ability;
muscle function
- From:
Journal of Medical Biomechanics
2020;35(6):E685-E691
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the effect of vibration training with adjusted frequency on changes in explosive force of lower limbs, balance and muscle function around ankle joints of patients with functional ankle instability (FAI), so as to provide an empirical basis for rehabilitation training of FAI patients in clinic. Methods Twenty-six FAI patients were randomly divided into the experimental group (n=14) and the control group (n=12). The experimental group received 8-week rehabilitation training with vibration intervention, while the control group only received 8-week rehabilitation training. Changes in maximum power, average power, maximum speed and average speed of the injured limb during vertical jump with single leg, changes in distances during long jump, changes in time during one-leg standing with eyes open and closed，changes in contract time (tc), relax time (tr) and displacement (Dm) of medial gastrocnemius (GM), lateral gastrocnemius (GL) and tibialis anterior (TA) muscles before and after training were measured and compared. Results In the experimental group, the maximum power and maximum speed of the injured limb during vertical jump with single leg, the distance during long jump with single leg and the time during one-leg standing with open and closed eyes were significantly improved, and the increase was higher than that of the control group. The increase of tc of all muscles in the experimental group was smaller than that of the control group, but tr and Dm did not show any regularity. Conclusions Vibration training with adjusted frequency can effectively improve the explosive force and balance ability of lower limbs of FAI patients, and promote the tc shortening of GL, GM and TA muscles, but whether vibration training with adjusted frequency can reduce muscle tension and promote muscle relaxation is still not clear.
