Abstract
The purpose of this study was to assess the effects of proprioceptive neuromuscular facilitation (PNF) with elastic band exercise on strength and dynamic balance in ankle instability. A total of 19 subjects with ankle instability. Subjects were randomly divided into ST(Stretching group, n=10) and STPNF(Stretching with Proprioceptive Neuromuscular Facilitation group, n=10). Two groups measured strength dynamic balance. The differences in ankle muscle strength and balance ability between pre-and post-intervention were analyzed using paired t-test and independent t-test. In the within-group pre-post comparison, STPNF showed significant increase in muscle strength at RPF30°, LPF30°, and RPF90°. In the between-groups comparison, significant difference in muscle strength was found at RPF30°, LPF30°, LDF30°, RDF90°, LPF90°, and LDF90° (p<0.05). In the within-group pre-post comparison of dynamic balance, STPNF showed significant increase in leftward and rightward (p<0.05). In the between-groups comparison, significant difference in rightward balance was found (p<0.05). The results from this study indicated that PNF with elastic band have improved the strength and balance in ankle instability.
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