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Objective <p>This study aimed to investigate the effects of four-week individualized transcranial direct current stimulation (tDCS) combined with foot core exercise (FCE) on foot and ankle sensorimotor function and postural control in individuals with chronic ankle instability (CAI).</p> Methods <p>Thirty-four CAI individuals were randomly assigned to a tDCS combined with FCE group (tDCS group, <i>n</i> = 17) and a sham stimulation combined with FCE group (control group, <i>n</i> = 17). All participants received individualized stimulation combined with FCE and sham stimulation combined with FCE, respectively, three times a week for 20&#xa0;min per session over four weeks. Ankle strength, joint position sense, and static and dynamic postural control were assessed at baseline and post-intervention.</p> Results <p>Compared with the control group and baseline, individualized tDCS combined with FCE significantly increased the relative peak torque of plantarflexion, reduced the absolute error of ankle eversion position sense, and decreased the average sway velocity of the center of pressure during single-leg standing with eyes closed in CAI individuals (<i>p</i> values ranging from &lt; 0.001 to 0.016).</p> Conclusion <p>Four weeks of individualized tDCS combined with FCE can effectively improve foot and ankle sensorimotor function and static postural control in CAI individuals.</p>

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Individualized transcranial direct current stimulation combined with foot core exercise improves foot and ankle sensorimotor function and static postural control in individuals with chronic ankle instability

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月21日

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  • Chuyi Zhang,
  • Songlin Xiao,
  • Bin Shen,
  • Zhen Xu,
  • Jianglong Zhan,
  • Jingjing Li,
  • Junhong Zhou,
  • Weijie Fu

摘要

Objective

This study aimed to investigate the effects of four-week individualized transcranial direct current stimulation (tDCS) combined with foot core exercise (FCE) on foot and ankle sensorimotor function and postural control in individuals with chronic ankle instability (CAI).

Methods

Thirty-four CAI individuals were randomly assigned to a tDCS combined with FCE group (tDCS group, n = 17) and a sham stimulation combined with FCE group (control group, n = 17). All participants received individualized stimulation combined with FCE and sham stimulation combined with FCE, respectively, three times a week for 20 min per session over four weeks. Ankle strength, joint position sense, and static and dynamic postural control were assessed at baseline and post-intervention.

Results

Compared with the control group and baseline, individualized tDCS combined with FCE significantly increased the relative peak torque of plantarflexion, reduced the absolute error of ankle eversion position sense, and decreased the average sway velocity of the center of pressure during single-leg standing with eyes closed in CAI individuals (p values ranging from < 0.001 to 0.016).

Conclusion

Four weeks of individualized tDCS combined with FCE can effectively improve foot and ankle sensorimotor function and static postural control in CAI individuals.