Hamdan Abdul-Latif, Sibai Abla, Rameh Charbel
Department of Otolaryngology Head and Neck Surgery, American University of Beirut Medical Center, Beirut, Lebanon.
J Voice. 2007 Jul;21(4):495-501. doi: 10.1016/j.jvoice.2006.01.009. Epub 2006 Apr 19.
OBJECTIVE/HYPOTHESIS: To study the effect of fasting on voice in women: abstinence from food and water intake between 14 and 18 hours.
A prospective study on female subjects.
A total of 28 female subjects were included in this study. Their age ranged between 21 and 45 years. Subjects with vocal symptoms or vocal fold lesions were excluded. The subjects were tested when they were not fasting and while fasting after the first week of intermittent fasting during Ramadan. Each subject was first asked about her vocal symptoms and the ease of phonation or phonatory effort. Then each underwent acoustic analysis and laryngeal video-endostroboscopy.
Vocal fatigue was the most common reported complaint (53.6%) followed by deepening of the voice (21.4%) and harshness (10.2%). Self-reported phonatory effort was significantly affected by fasting (P value < 0.001). Out of the 28 subjects, 23 had an increase in their phonatory effort. Vocal acoustic parameters did not change markedly except for the maximum phonation time, which decreased significantly. Laryngeal video-endostroboscopy did not reveal any significant changes during fasting. All stroboscopic parameters were the same except for a decrease in the amplitude of the mucosal waves in one subject and the presence of a posterior chink in three subjects.
Fasting affects voice. There is an increase in the phonatory effort, and vocal fatigue is the most common symptom.
目的/假设：研究禁食对女性嗓音的影响：禁食14至18小时，期间不摄入食物和水。
对女性受试者进行的前瞻性研究。
本研究共纳入28名女性受试者。她们的年龄在21至45岁之间。排除有嗓音症状或声带病变的受试者。在斋月间歇性禁食的第一周后，受试者在非禁食状态和禁食状态下接受测试。首先询问每位受试者其嗓音症状以及发声的难易程度或发声努力程度。然后每位受试者接受声学分析和喉部视频频闪喉镜检查。
嗓音疲劳是最常见的报告症状（53.6%），其次是嗓音变深沉（21.4%）和嗓音粗糙（10.2%）。自我报告的发声努力程度受禁食影响显著（P值<0.001）。在28名受试者中，有23名的发声努力程度增加。除最大发声时间显著缩短外，嗓音声学参数无明显变化。喉部视频频闪喉镜检查未发现禁食期间有任何显著变化。除一名受试者黏膜波振幅降低和三名受试者出现后间隙外，所有频闪喉镜参数均相同。
禁食会影响嗓音。发声努力程度增加，嗓音疲劳是最常见的症状。
