通过强度负荷测试确定老年人的发声功能：与年轻人的比较。
Phonatory function of the elderly determined by intensity-loading test: a comparison with the young.
作者信息
Makiyama Kiyoshi, Yoshihashi Hidetaka, Hirai Ryoji, Kodama Hitomi, Asano Yukimi
机构信息
Department of Otorhinolaryngology-Head and Neck Surgery, Nihon University Surugadai Hospital, Chiyoda, Tokyo, Japan.
出版信息
Otolaryngol Head Neck Surg. 2007 Jun;136(6):888-93. doi: 10.1016/j.otohns.2007.01.013.
OBJECTIVE
The goal was to test the hypothesis that the elderly have diminished laryngeal regulation capability, so we investigated phonatory function in the elderly and young using a sound pressure-loading test.
STUDY DESIGN AND SETTING
In 36 healthy men (17 in their 20s, 19 in their 70s) and 45 healthy women (22 in their 20s, 23 in their 70s), fundamental frequency, sound pressure level, mean flow rate (MFR), and expiratory lung pressure (EP) were determined from phonatory function testing. Subjects phonated at a comfortable level and at high intensity, without changing vocal pitch.
RESULTS
MFR, EP, and airway resistance increased with high-intensity phonation in the young; however, only MFR and EP increased in the elderly.
CONCLUSIONS
The findings supported our hypothesis: with high-intensity phonation, the elderly undergo unchanged laryngeal regulation but a greater degree of expiratory regulation.
SIGNIFICANCE
The elderly are likely to become tired due to the effort required for phonation.
目的
本研究旨在验证老年人喉部调节能力下降这一假设，因此我们通过声压负荷测试对老年人和年轻人的发声功能进行了调查。
研究设计与设置
对36名健康男性（20多岁的17名，70多岁的19名）和45名健康女性（20多岁的22名，70多岁的23名）进行发声功能测试，测定其基频、声压级、平均流速（MFR）和呼气肺压（EP）。受试者在舒适水平和高强度下发声，不改变音调。
结果
年轻人在高强度发声时，MFR、EP和气道阻力增加；然而，老年人仅MFR和EP增加。
结论
研究结果支持了我们的假设：在高强度发声时，老年人喉部调节不变，但呼气调节程度更大。
意义
由于发声所需的努力，老年人可能更容易疲劳。
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