Department of Otolaryngology-Head & Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio.
Department of Otolaryngology-Head & Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, Ohio; Department of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, Indiana.
J Voice. 2022 Sep;36(5):695-700. doi: 10.1016/j.jvoice.2020.07.034. Epub 2020 Aug 26.
OBJECTIVE/HYPOTHESIS: There is an increased need for vocal education programs in group fitness instructors due to the reported risk of phonotraumatic injury in this population. Most research has focused on aerobics class instructors with limited research detailing the vocal demand response of cycling instruction, specifically. We hypothesized that instruction of a single indoor cycling class would produce evidence of acute vocal fold edema manifested by worsening of acoustic and self-perceptual voice measures and changes in ratings of laryngeal appearance.
Prospective Cohort study.
Acoustic and self-perceptual voice measures that were potentially sensitive to laryngeal edema were collected from ten cycling instructors (Mean age: 31 ± 6.14 years, 3M and 7F) before and after instruction of a typical 45-minute cycling class. Two laryngologists then rated pairs of laryngeal exams from five instructors (Mean age: 30 ± 6.22 years, 1M and 4F) on the measure of vocal fold edema using a 10-inch Visual Analogue Scale. Paired t-test comparisons were completed on normalized data to compare pre- and postinstruction.
Majority of acoustic and self-perceptual measures significantly worsened following cycling instruction but the magnitude of change in these measures were small. In terms of laryngeal appearance, no measurable change in vocal fold edema was observed at both time points.
The vocal demand response to a single cycling class may be insufficient to cause significant vocal fold edema in our cycling instructors. Future research is required to determine the effects of repeated cycling instruction.
目的/假设：由于有报道称该人群存在发生声带创伤性损伤的风险，因此群体健身教练需要更多的声乐教育课程。大多数研究都集中在有氧健身课教练上，而对特定的动感单车教学的声乐需求反应的研究有限。我们假设，教授一节室内单车课会产生急性声带水肿的证据，表现为声学和自我感知的声音测量恶化以及喉部外观的评分变化。
前瞻性队列研究。
从 10 名单车教练（平均年龄：31 ± 6.14 岁，3 名男性和 7 名女性）在教授典型的 45 分钟单车课后，收集了可能对声带水肿敏感的声学和自我感知的声音测量值。然后，两名喉镜科医生使用 10 英寸视觉模拟量表对五名教练（平均年龄：30 ± 6.22 岁，1 名男性和 4 名女性）的声带检查对声带水肿进行评分。对归一化数据进行配对 t 检验比较，以比较课前和课后。
大多数声学和自我感知测量值在单车课后明显恶化，但这些测量值的变化幅度较小。就喉部外观而言，在两个时间点都没有观察到声带水肿的可测量变化。
单次单车课的声乐需求反应可能不足以引起我们的单车教练发生明显的声带水肿。需要进一步的研究来确定重复的单车教学的影响。
