Martin-Sanz Eduardo, Ortega Crespo Isabel, Esteban-Sanchez Jonathan, Sanz Ricardo
a Department of Otolaryngology , University Hospital of Getafe , Madrid , Spain.
Acta Otolaryngol. 2017 Sep;137(9):952-956. doi: 10.1080/00016489.2017.1322711. Epub 2017 May 9.
Several studies have indicated better balance control in dancers than in control participants, but some controversy remains. The aim of our study is to evaluate the postural stability in a cohort of dancers, non-dancers, compensated, and non-compensated unilateral vestibular neuritis (VN).
This is a prospective study of control subjects, dancers, and VN patients between June 2009 and December 2015. Dancers from the Dance Conservatory of Madrid and VN patients were referred to our department for analysis. After the clinical history, neuro-otological examination, audiogram, and caloric tests, the diagnosis was done. Results from clinical examination were used for the categorization of compensation situation. A computerized dynamic posturography was performed to every subject.
Forty dancers and 38 women formed both 'dancer' and 'normal' cohorts. Forty-two compensated and 39 uncompensated patients formed both 'compensated' and 'uncompensated' cohorts. Dancers had significantly greater antero-posterior (AP) body sway than controls during condition 5 and 6 in the Sensory Organization Test (SOT) (p < .05). When we compared the uncompensated cohort with both control and dancers groups, we found significant greater body sway in every SOT studied condition (p < .05). While mean AP body say in SOT 5 and 6, showed greater values in compensated patients than the control group, the mean analysis did not show any statistical difference between the compensated and dancer groups, in such SOT conditions.
Dancers demonstrated greater sways than non-dancers when they relied their postural control on vestibular input alone. Compensated patients had a similar posturographic pattern that the dancers cohort, suggesting a similar shift from visual to somatosensory information.
多项研究表明，舞者的平衡控制能力优于对照组参与者，但仍存在一些争议。我们研究的目的是评估一组舞者、非舞者、代偿性和非代偿性单侧前庭神经炎（VN）患者的姿势稳定性。
这是一项对2009年6月至2015年12月期间的对照受试者、舞者和VN患者进行的前瞻性研究。马德里舞蹈学院的舞者和VN患者被转介到我们科室进行分析。在完成临床病史、神经耳科检查、听力图和冷热试验后，做出诊断。临床检查结果用于代偿情况的分类。对每个受试者进行计算机化动态姿势描记法检查。
40名舞者和38名女性组成了“舞者”和“正常”队列。42名代偿性患者和39名非代偿性患者组成了“代偿性”和“非代偿性”队列。在感觉组织测试（SOT）的条件5和条件6期间，舞者在前后（AP）方向上的身体摆动明显大于对照组（p < 0.05）。当我们将非代偿性队列与对照组和舞者组进行比较时，发现在每个研究的SOT条件下，身体摆动都明显更大（p < 0.05）。虽然在SOT 5和6中，代偿性患者的平均AP身体摆动值高于对照组，但在这些SOT条件下，代偿性患者组和舞者组之间的平均分析没有显示出任何统计学差异。
当舞者仅依靠前庭输入进行姿势控制时，他们表现出比非舞者更大的摆动。代偿性患者的姿势描记模式与舞者队列相似，表明从视觉信息到体感信息有类似的转变。
