The effect of additional joint mobilization on neuromuscular performance in individuals with functional ankle instability

Yi Fen Shih*, Hsiang Ting Yu, Wen Yin Chen, Kwong Kum Liao, Hsiu Chen Lin, Yea Ru Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Objectives To examine the effects of joint mobilization and exercise training on neuromuscular performance in individuals with functional ankle instability (FAI). Design A cross-sectional study. Participants Forty five subjects with FAI were randomized into three groups: control (CG, n = 15, 27.9 ± 6.6yr), training (TG, n = 15, 26.9 ± 5.8yr) and mobilization with training group (MTG, n = 15, 26.5 ± 4.8yr). Intervention Four weeks of neuromuscular training for TG; neuromuscular training and joint mobilization for MTG. Main outcome measures Electromyography of the peroneus longus (PL), tibialis anterior (TA), and soleus (SOL) and the reaching distance of the Y balance test (YBT), dorsiflexion range of motion (DFROM), Cumberland ankle instability tool (CAIT), and global rating scale (GRS). Two-way repeated measures MANOVA were used with the significance level p <.05. Results MANOVA found significant group by time interactions on posterolateral reaching distance (p =.032), PL activation (p =.006–.03), DFROM (p <.001), CAIT (p <.001) and GRS (p <.001). The post hoc tests indicated significantly improved PL muscle activity and posterolateral reaching distance for MTG compared to TG (p =.004) and CG (p =.006). Conclusion Joint mobilization resulted in additional benefits on self-reported ankle instability severity, dorsiflexion mobility, and posterolateral balance performance in individuals with FAI, but its effects on general improvement, muscle activation, and other balance tasks remained uncertain.

Original languageEnglish
Pages (from-to)22-28
Number of pages7
JournalPhysical Therapy in Sport
Volume30
DOIs
StatePublished - Mar 2018

Keywords

  • Ankle instability
  • Balance
  • Electromyography
  • Joint mobilization

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