Postural control in early stages of Duchenne muscular dystrophy.

Cristhina Bonilha Huster Siegle, Flaviana Kelly de Lima Maciel, Pedro Claudio Gonsales de Castro, Daniel Seiei Uehara Tamashiro, Cristina Dos Santos Cardoso de Sá
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Abstract

Objective: To verify whether there is an increase in the center of pressure (COP) displacement velocity and area in individuals with Duchenne muscular dystrophy (DMD) in Vignos stages 2 and 3, assessed under different sensory conditions; to verify whether COP displacement velocity and area increase within the same Vignos stage with changes in sensory conditions during postural control assessment.

Methods: A cross-sectional study was conducted with individuals with DMD in Vignos stages 2 and 3, aged between 7 and 19 years old (mean 9.58, SD±3.22). Postural control was assessed using the Wii Balance Board and a modified sensory organization test. COP displacement velocity and area were recorded. Independent samples t-tests were performed to compare the average values of these variables between Vignos 2 and 3 under each sensory condition and within the same Vignos stage across different sensory conditions.

Results: No significant difference were found in any analyzed variable between Vignos 2 and 3. However. A significant difference was observed when comparing sensory condition 1 with condition 4, within the same disease stage.

Conclusions: Despite the decrease in muscle strength from Vignos 2 to 3, participants were able to employ motor strategies to maintain postural control. However, postural control performance significantly worsens with changes in sensory conditions within the same Vignos stage.

杜氏肌营养不良早期的体位控制。
目的:验证在不同感觉条件下,Duchenne肌营养不良(DMD)患者在Vignos 2期和3期是否存在压力中心(COP)位移速度和面积的增加;验证在姿势控制评估过程中,COP位移速度和面积是否随感觉条件的变化而在同一Vignos阶段增加。方法:对7 ~ 19岁的Vignos 2期和3期DMD患者(平均9.58,SD±3.22)进行横断面研究。使用Wii平衡板和改进的感觉组织测试来评估姿势控制。记录COP驱替速度和面积。进行独立样本t检验,比较不同感官条件下,Vignos 2和Vignos 3之间以及不同感官条件下同一Vignos阶段内这些变量的平均值。结果:Vignos 2和Vignos 3在各分析变量上均无显著差异。然而。在同一疾病阶段,将感觉状态1与状态4进行比较,观察到显着差异。结论:尽管从Vignos 2到3的肌肉力量有所下降,但参与者能够采用运动策略来维持姿势控制。然而,在同一Vignos阶段,随着感觉条件的变化,姿势控制表现明显恶化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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