Department of Rehabilitation Sciences, The University of Toledo, 2801 W. Bancroft St., Toledo, OH 43606, USA.
Percept Mot Skills. 2011 Jun;112(3):729-36. doi: 10.2466/11.15.28.PMS.112.3.729-736.
This experimental study examined the efficacy of the vocal function exercise program in improving voice production in individuals with normal voices. 20 young women (M age = 22 yr.) with normal voices, 10 in the Monitored compliance group and 10 in the Unmonitored compliance group, received training in performing vocal function exercises followed by daily practice of the exercises for 28 consecutive days. Participants in the Monitored compliance group were required to submit audio or video recordings of their daily practice of vocal function exercises, and those in the Unmonitored compliance group were not required to record their daily practice sessions. Results indicated that while the participants in both groups significantly increased maximum phonation times and maximum phonational frequency ranges, those in the Monitored group improved significantly more than the participants in the Unmonitored group on these outcome measures.
本实验研究旨在探讨嗓音功能锻炼方案对正常嗓音个体发声能力的改善效果。20 名年轻女性（M 年龄=22 岁）参与了该研究，其中 10 名参与者被分配到监测依从组，10 名参与者被分配到非监测依从组。所有参与者均接受了嗓音功能锻炼的培训，并在接下来的 28 天内每天进行练习。监测依从组的参与者需要提交他们日常嗓音功能锻炼的音频或视频记录，而非监测依从组的参与者则无需记录他们的日常练习情况。结果表明，两组参与者的最大发音时间和最大发音频率范围均显著增加，但监测依从组在这些结果测量上的改善明显优于非监测依从组。
