ABSTRACT

Objective

Establish objective and subjective speech rate and muscle function differences between athletes with and without sports related concussion (SRC) histories and provide potential motor speech evaluation in SRC.

Methods

Over 1,110 speech samples were obtained from 30, 19–22 year-old athletes who had sustained an SRC within the past 2 years and 30 pair-wise matched control athletes with no history of SRC. Speech rate was measured via average time per syllable, average unvoiced time per syllable, and expert perceptual judgment. Speech muscle function was measured via surface electromyography over the obicularis oris, masseter, and segmental triangle. Group differences were assessed using MANOVA, bootstrapping and predictive ROC analyses.

Results

Athletes with SRC had slower speech rates during DDK tasks than controls as evidenced by longer average time per syllable longer average unvoiced time per syllable and expert judgment of slowed rate. Rate measures were predictive of concussion history. Further, athletes with SRC required more speech muscle activation than controls to complete DDK tasks.

Conclusion

Clear evidence of slowed speech and increased muscle activation during the completion of DDK tasks in athletes with SRC histories relative to controls. Future work should examine speech rate in acute concussion.

中文翻译：

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运动相关的脑震荡会影响语速和肌肉生理机能

 抽象的

 客观的

确定有和没有运动相关脑震荡 (SRC) 史的运动员之间的客观和主观语速以及肌肉功能差异，并在 SRC 中提供潜在的运动言语评估。

 方法

从 30 名过去 2 年内经历过 SRC 的 19-22 岁运动员和 30 名没有 SRC 历史的配对对照运动员中获取了超过 1,110 个语音样本。语速通过每个音节的平均时间、每个音节的平均清音时间和专家的感知判断来测量。通过口轮匝肌、咬肌和节段三角区的表面肌电图测量言语肌功能。使用多元方差分析、自举分析和预测 ROC 分析评估组间差异。

 结果

患有 SRC 的运动员在 DDK 任务中的语速比对照组慢，每个音节的平均时间较长、每个音节的平均清音时间较长以及专家对语速减慢的判断证明了这一点。速率测量可预测脑震荡史。此外，患有 SRC 的运动员比对照组需要更多的言语肌肉激活才能完成 DDK 任务。

 结论

有明显证据表明，与对照组相比，有 SRC 历史的运动员在完成 DDK 任务期间言语速度减慢，肌肉激活增加。未来的工作应该检查急性脑震荡的语速。