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kalantariyan M, Minoonejad H, Rajabi R, Seidi F. Comparative Effects of Wobble Board and TRX Training on Balance in Athletes With Functional Ankle Instability. PTJ 2026; 16 (1) :39-48
URL: http://ptj.uswr.ac.ir/article-1-681-en.html

Purpose: The present study aimed to compare the effect of wobble board and TRX training on static and dynamic balance in athletes with functional ankle instability.
Methods: A total of 35 athletes with functional ankle instability were randomly divided into three groups: wobble board training, TRX training, and control. The anthropometric variables and the static and dynamic balance indices of subjects were evaluated using the Biodex balance assessment tool in three stages: pre-test, post-test, and follow-up (6 weeks after post-test). Subsequently, the training groups performed their relevant exercises for 6 weeks. The repeated-measures analysis of variance and Bonferroni post-hoc test were used for the statistical analyses. The significance level was considered <0.05.
Results: The repeated-measures ANOVA results showed that the static and dynamic balance indices of the subjects in the training groups significantly improved from the pre-test to the post-test (P≤0.05). Additionally, the results indicated that 6 weeks after the post-test stage, the positive effects of wobble board and TRX training did not diminish in either training group (P≤0.05). However, the balance indices evaluated in the control group did not show any significant difference at any of the measurement points (P≥0.05). 
Conclusion: Athletes with functional ankle instability often struggle with deficiencies in both static and dynamic balance, which increases their vulnerability to re-injury during dynamic movements. Our findings suggest that incorporating functional-based approaches, such as wobble-board and TRX exercises, can serve as effective strategies for enhancing balance in athletes with functional ankle instability.