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- W2765797889 abstract "The purpose of this study was to investigate the effects of voice production and perception of dyspnea in aerobic instructors during simultaneous tasks of exercise and speech production. The study aimed to document changes that occur during four conditions: 1) voice production without exercise and no use of amplification; 2) voice production without exercise and the use of amplification; 3) voice production during exercise without the use of amplification; 4) voice production during exercise with the use of amplification. Participants included ten aerobic instructors (two male and eight female). The dependent variables included vocal intensity, average fundamental frequency (F0), noise-to-harmonic ratio (NHR), jitter percent (jitt %), shimmer percent (shim %), and participants' self-perception of dyspnea. The results indicated that speech alone, whether it was with or without amplification, had no effect on the sensation of dyspnea. However, when combining speech with exercise, the speech task became increasingly difficult, even more so without the use of amplification. Exercise was observed to inhibit vocal loudness levels as vocal intensity measures were lowest in the conditions with exercise with the use of amplification. Increases in F0 occurred in conditions involving exercise without the use of amplification. Moreover, four participants in various conditions exhibited frequencies that diverged from their gender's normal range. Participants' NHR increased during periods of exercise, however no participants were found to have NHR measures outside the normal range. Four participants were found to have moderate laryngeal pathology that was hemorrhagic in nature. Findings suggest that traditional treatment protocols may need to be modified beyond hygienic approaches in order to address both the respiratory and laryngeal work-loads that are encountered in this population and others involving similar occupational tasks." @default.
- W2765797889 created "2017-11-10" @default.
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- W2765797889 date "2004-01-01" @default.
- W2765797889 modified "2023-09-27" @default.
- W2765797889 title "Effects Of Simultaneous Exercise And Speech Tasks On The Perception Of" @default.
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