Subjects: Mechanics >> Applied Mechanics submitted time 2023-03-20 Cooperative journals: 《应用力学学报》
Abstract： The aim of this study was to explore the effect of targeted modulation of the tibialis anterior muscle by transcranial direct current stimulation ( tDCS) on static balance performance.Totally 24 collegestudents received 20 min of tDCS and sham on tibialis anterior muscle at 2 mA in a randomized order.Transcranial magnetic stimulation (TMS) and balance tests were completed to assess the neurophysiologi-cal and balance performance before and after each stimulation.Results show that tDCS significantly in-creased the mean displacements in the Y-direction ( MDY) on both double with eyes-opening and singlewith eyes-closing.Compared to the baseline , tDCS significantly reduced MDY on double with eyes-openingand the mean velocity in the Y-direction on single with eyes-closing. tDCS significantly increased the meandisplacements X-direction ( MDX) on double with eyes-opening and single with eyes-closing and the maxi-mum sway diameter in the X-direction on doublet with eyes-opening.Compared to the baseline , tDCS sig-nificantly increased MDX on double with eyes-opening , single with eyes-opening, and double with eyes-closing; furthermore , the mean velocity in the X-direction on double with eyes-closing was increased.Com-pared with baseline ,tDCS significantly reduced resting motor threshold.'Targeted stimulation on the tibialisanterior muscle by tDCS is effective in improving the single balance with eyes-closing.
Subjects: Mechanics >> Applied Mechanics submitted time 2023-03-20 Cooperative journals: 《应用力学学报》
Abstract： To investigate whether high-definition tDCS ( HD-tDCS) of the primary motor cortex ( Ml ) canaffect dynamic postural control in the Y-balance task of healthy young adults. Twelve healthy adult maleswere recruited , and a randomized ,crossover experimental design was used in this study.The effect of HD-tDCS on dynamic postural control was assessed using Y-balance. Parameters included the reach distanceand the center of pressure ( COP)displacement and average velocity in the Y-balance task. Y-balancetasks were assessed at baseline and immediately after tDCS.Two-way repeated measures ANOVA examined the effect of tDCS.Results show that after HD-tDCS of the Ml ,the reach distance in the anterior directionof the right leg Y-balance task significantly increased by 2.84% ;COP of medial-lateral displacement andCOP displacement path length significantly decreased by 20% and 16% in the posteromedial direction,and COP of medial-lateral displacement significantly decreased by 20% in the posterolateral direction ofthe left leg Y-balance task.This study provides certain evidence that HD-tDCS improves dynamic posturalcontrol in healthy young adults.
Hits
YES
Hits
Downloads
Comment