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Meta-analysis of the dosage of balance training on ankle function and dynamic balance ability in patients with
Fang Tang1, Meng Xiang2, Shanshan Yin3
1College of Physical Education, Anqing Normal University, Anqing, China.
Objective:
To explore and compare the dosage of balance training on ankle function and dynamic balance ability in patients with chronic ankle instability (CAI).
Methods:
The PubMed, Embase, Web of Science, Medline, and Cochrane databases were searched up to December 2023. Quality assessment was carried out using the risk-of-bias guidelines of the Cochrane Collaboration, and the standardized mean differences (SMD) or mean differences (MD) for each outcome were compute.
Results:
Among 20 eligible studies, including 682 participants were analyzed in this meta-analysis. The results of the meta-analysis demonstrated that balance training was effective in enhancing ankle function with self-functional scores (SMD = 1.02; 95% CI, 0.61 to 1.43; p < 0.00001; I2 = 72%) and variables associated with the ability of dynamic balance such as SEBT-A (MD = 5.88; 95% CI, 3.37 to 8.40; p < 0.00001; I2 = 84%), SEBT-PM (MD = 5.47; 95% CI, 3.40 to 7.54; p < 0.00001; I2 = 61%), and SEBT-PL (MD = 6.04; 95% CI, 3.30 to 8.79; p < 0.0001; I2 = 79%) of CAI patients. Meta-regression indicated that the intervention time might be the principal cause of heterogeneity (p = 0.046) in self-functional scores. In subgroup analyses of self-functional score across intervention types, among the intervention time, more than 20 min and less than 30 min had the most favorable effect (MD = 1.21, 95% CI: 0.96 to 1.46, p < 0.00001, I2 = 55%); among the intervention period, 4 weeks (MD = 0.84, 95% CI: 0.50 to 1.19, p < 0.00001, I2 = 78%) and 6 weeks (MD = 1.21, 95% CI: 0.91 to 1.51, p < 0.00001, I2 = 71%) had significant effects; among the intervention frequency, 3 times (MD = 1.14, 95% CI: 0.89 to 1.38), p < 0.00001, I2 = 57%) had significant effects. Secondly, in subgroup analyses of SEBT across intervention types, a 4-week and 6-week intervention with balance training 3 times a week for 20-30 min is the optimal combination of interventions to improve SEBT (dynamic balance) in patients with chronic ankle instability.
Conclusion:
Balance training proves beneficial for ankle function in patients with CAI. Intervention time constitutes a major factor influencing self-function in patients with CAI. It is recommended that the optimal dosage of balance training for CAI involves intervention three times a week, lasting for 20 to 30 min over a period of 4 to 6 weeks for superior rehabilitation.
