#4133. Age-related functional reserve decline is not seen in pharyngeal swallowing pressures

September 2026publication date
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Journal’s subject area:
Linguistics and Language;
Speech and Hearing;
Otorhinolaryngology;
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Abstract:
Functional reserve represents the difference between an individual’s ability to produce a maximum output function and the ability to perform a functional task. Several studies have documented an age-related decrease in functional reserve with oral tongue pressure generation. The aim of this study was to investigate pharyngeal functional reserve using high-resolution manometry during normal-effort and effortful swallows. Pharyngeal high-resolution manometry was performed on 38 younger healthy individuals (40 years) and 18 older healthy individuals (60 years) during normal-effort and effortful water swallows. Maximum pharyngeal pressures and pharyngeal contractile integral were significantly increased during the effortful swallows compared to normal-effort swallows (p <.001), but there were no interactions between task and age in pharyngeal pressures. Healthy individuals increase pharyngeal driving pressures during effortful swallows, without an age-related reduction in the magnitude of pressure increase. Thus, this study did not find evidence for an age-related reduction in pharyngeal functional reserve.
Keywords:
Functional reserve; oral tongue pressure; age; swallow; pharyngeal functional reserve

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