Vocal Loading and Environmental Humidity Effects in Older Adults

Sundarrajan, Anusha; Fujiki, Robert Brinton; Loerch, Sara; Venkatraman, Anumitha; Sivasankar, M. Preeti

doi:10.1016/j.jvoice.2017.02.002

Cited by 30 publications

(20 citation statements)

References 44 publications

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“…The increase was considered as a positive finding as the vocal folds may have become lighter and thus able to vibrate quicker when well lubricated [2]. No statistical difference was found for the effect of low and moderate humidity on relative fundamental frequency (p=0.97) or the cepstral peak prominence (CPP) (P>0.05) [44] or the low/high ratio (LHR) (p>0.05) [45]. Superficial hydration also did not have significant effects on noise, the aperiodic component of the signal (p=0.668), the irregularity of the voice over time (p=0.795), or the glottal-to-noise excitation ratio (GNE) (p=0.616).…”

Section: Results As Per Surface Hydrationmentioning

confidence: 99%

“…Only nebulizing an isotonic solution after a laryngeal desiccation challenge of breathing dry air, resulted in a significant improvement (p=0.0009) and thus decrease in PPE [25]. Only one study by [45] reported a significant decrease (p=0.01) in PPE when humidity was increased, however other studies found non-significant effects (p>0.05) [37,38].…”

Section: Overall Consensusmentioning

confidence: 96%

“…Participants were required to draw a line ranging from "no effort" to "maximal effort" using different stimuli upon which they rated their effort, for example singing "happy birthday" or singing certain musical notes (Tanner, Roy, Merril, Muntz, Houts, Sauder, Elstad, & Wright-Costa,2010). The distance of this line was then measured to give the PPE value (Sandage, Conner & Pascoe, 2013;Sundarrajan, et al, 2017;Tanner, et al, 2010). In essence, PPE refers to a psychological, self-perceived measure of vocal effort .…”

Section: Irregularitymentioning

confidence: 99%

“…This increase was likely as a result of increased vocal demand, oral breathing and mouth opening that resulted in increased surface dehydration Only two (50%) of the four studies found a significant positive effect of higher humidity levels on PTP, as PTP was found to decrease in higher humidity conditions [38; 39]. However, it may be that moderate humidity is not sufficient enough to optimally hydrate the airway to attenuate the negative vocal effects of loading or it may be that the amount of change could not be detected in PTP [44,45]. A high humidity condition may thus be required to see greater change.…”

Section: Overall Consensusmentioning

confidence: 99%

See 3 more Smart Citations

The Effect of Hydration on Voice Quality in Adults: A Systematic Review

et al. 2019

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Section: Results As Per Surface Hydrationmentioning

confidence: 99%

Section: Overall Consensusmentioning

confidence: 96%

Section: Irregularitymentioning

confidence: 99%

Section: Overall Consensusmentioning

confidence: 99%

See 2 more Smart Citations

The Effect of Hydration on Voice Quality in Adults: A Systematic Review

et al. 2019

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“…High energy in this region of the spectrum has been shown to be linked to increased speech intelligibility for speech presented in noise (e.g., Lu and Cooke, 2009;Hazan and Markham, 2004;Cooke et al, 2014). However, increasing vocal effort is also a strategy that may lead to vocal strain (Sundarrajan et al, 2017). Studies of the effect for older adults of using louder voice when communicating in noise have shown that they make greater abdominal muscle effort (Huber and Spruill, 2008).…”

Section: Discussionmentioning

confidence: 99%

Clear speech adaptations in spontaneous speech produced by young and older adults

Hazan

Tuomainen

Kim

et al. 2018

The Journal of the Acoustical Society of America

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The study investigated the speech adaptations by older adults with and without age-related hearing loss made to communicate effectively in challenging communicative conditions. Acoustic analyses were carried out on spontaneous speech produced during a problem-solving task (diapix) carried out by talker pairs in different listening conditions. There were 83 talkers of Southern British English. 57 talkers were older adults (OA) aged 65-84: 30 with normal hearing (OANH) and 27 (OAHL) with presbycusis (mean PTA .250-4kHz: 27.7 dB HL). 26 talkers were younger adults (YA) aged 18-26 with normal hearing. Participants were recorded while completing the diapix task with a conversational partner (YA of the same sex) when (a) both talkers heard normally (NORM), (b) the partner had a simulated hearing loss (HLS) and (c) both talkers heard babble noise (BAB2). Irrespective of hearing status, there were age-related differences in some acoustic characteristics of YA and OA speech produced in NORM, most likely linked to physiological factors. In challenging conditions, while OANH talkers typically patterned with YA talkers, OAHL talkers made adaptations more consistent with an increase in vocal effort. Our study suggests that even mild presbycusis in healthy older adults can affect the speech adaptations made to maintain effective communication.PACS number: 43.70 Mn I.

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The Therapeutic Effects of Straw Phonation on Vocal Fatigue

et al. 2020

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Objectives: Straw phonation has been investigated for its vocal warm-up effects on healthy populations and therapeutic effects on voice patients. The purpose of this article was to determine whether it is beneficial for vocal fatigue. Study Design: Prospective cohort study Methods: Twenty-five healthy participants were recruited into 1-hour vocal loading tasks followed by 10-minute vocal rest or straw phonation on 2 different days. Various parameters including phonation threshold pressure (PTP), mean airflow, closed quotient (CQ), current speaking effort level (EFFT), and laryngeal discomfort (DISC) were acquired at baseline, after vocal load, and after the intervention. Results: Increased PTP, EFFT, and DISC were observed after vocal load. Decreased PTP, EFFT, and DISC were then acquired after both vocal rest or straw phonation. More significant improvements were obtained in straw phonation when compared with vocal rest. Additionally, significantly increased mean flow and decreased CQ were obtained after straw phonation when compared to vocal rest. Conclusions: Straw phonation has the potential to adjust aerodynamics within the vocal tract leading to improved vocal efficiency, optimized vibration mode, and attenuated vocal fatigue. This study provided a promising treatment for vocal fatigue that could have wide clinical relevance to voice users with high voice demands.

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Vocal Loading and Environmental Humidity Effects in Older Adults

Cited by 30 publications

References 44 publications

The Effect of Hydration on Voice Quality in Adults: A Systematic Review

The Effect of Hydration on Voice Quality in Adults: A Systematic Review

Clear speech adaptations in spontaneous speech produced by young and older adults

The Therapeutic Effects of Straw Phonation on Vocal Fatigue

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