2017
DOI: 10.1016/j.jvoice.2016.09.014
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Metabolic Mechanisms of Vocal Fatigue

Abstract: Vocal fatigue is among the most debilitating conditions affecting individuals with voice disorders. Impressions about mechanisms potentially underlying vocal fatigue have varied depending on how fatigue is defined, participants studied, and measures made, thereby impacting the selection of treatment strategies that may alleviate the condition. However, little is currently known about actual metabolic mechanisms of vocal fatigue. The current study aimed to address this issue by investigating the hypothesis that… Show more

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Cited by 42 publications
(40 citation statements)
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“…Intrinsic factors relate to the subject's voice use (phonation type, voice quality, duration of phonation, fundamental frequency (F0), and intensity of voice), 1 biological factors (gender, age, genetics, hormones, and vocal fold biochemistry), 1 and aerobic conditioning. 14 Extrinsic factors relate to the environment influencing the voice, for instance room acoustics, humidity, 15 and background noise. 4 Two main approaches have been used in previous studies to investigate the appearance of and recovery from changes because of vocal load in both healthy and dysphonic individuals.…”
Section: Introductionmentioning
confidence: 99%
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“…Intrinsic factors relate to the subject's voice use (phonation type, voice quality, duration of phonation, fundamental frequency (F0), and intensity of voice), 1 biological factors (gender, age, genetics, hormones, and vocal fold biochemistry), 1 and aerobic conditioning. 14 Extrinsic factors relate to the environment influencing the voice, for instance room acoustics, humidity, 15 and background noise. 4 Two main approaches have been used in previous studies to investigate the appearance of and recovery from changes because of vocal load in both healthy and dysphonic individuals.…”
Section: Introductionmentioning
confidence: 99%
“…4 Two main approaches have been used in previous studies to investigate the appearance of and recovery from changes because of vocal load in both healthy and dysphonic individuals. First, most such studies were conducted under laboratory conditions 2,11,12,14,[16][17][18][19][20][21] and used endurance tasks believed to challenge the vocal mechanism, such as prolonged speaking, speaking against background noise, sustaining vowels, and singing. 1 These tasks are referred to as vocally fatiguing tasks, vocal loading tasks, or vocal-loading tests.…”
Section: Introductionmentioning
confidence: 99%
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“…Thus, the insufficient oxygen supply would cause performance decrements over time. Two factors can explain this: neuromuscular inefficiency and cardiovascular recovery deficit (3) . Regarding VF, neuromuscular inefficiency could involve the recruitment of more muscles than needed for task performance or "incorrect pattern" of muscle activation, considering that both will lead to greater energy demands.…”
Section: Introductionmentioning
confidence: 99%
“…Regarding VF, neuromuscular inefficiency could involve the recruitment of more muscles than needed for task performance or "incorrect pattern" of muscle activation, considering that both will lead to greater energy demands. On the other hand, the inadequate cardiovascular recovery is related to the time course that physiological functions return to the baseline homeostatic state after vocal use (3) , which could be affected by lack of training, as well as the possibility of a genetic disposition that could cause low efficiency of laryngeal repairing mechanism (4,5) .…”
Section: Introductionmentioning
confidence: 99%