Affiliation:
1. University of Canterbury, Christchurch, New Zealand
2. The Van der Veer Institute for Parkinson’s and Brain Research, Christchurch, New Zealand
3. University of Adelaide, Adelaide, Australia
Abstract
Purpose
To compare the effects of the tongue-hold swallowing maneuver on pharyngeal pressure generation in healthy young and elderly research volunteers.
Method
Sixty-eight healthy research volunteers (young,
n
= 34, mean age = 26.8 years,
SD
= 5.5; elderly,
n
= 34, mean age = 72.6 years,
SD
= 4.8; sex equally represented) performed 5 noneffortful saliva swallows and 5 tongue-hold swallows each. Amplitude and duration of pharyngeal pressure were investigated during both swallowing conditions with solid-state pharyngeal manometry at the level of the oropharynx, hypopharynx, and upper esophageal sphincter (UES).
Results
At both pharyngeal levels, tongue-hold swallows produced lower peak pressure compared with saliva swallows. During tongue-hold swallows, UES relaxation pressure was increased in the elders, whereas the younger group displayed a trend toward reduced relaxation pressure. Elderly individuals produced pressure longer during control swallows in the oropharynx and hypopharynx than young individuals.
Conclusions
The tongue-hold maneuver affects oropharyngeal and hypopharyngeal pressure in the young and elders in similar ways, whereas effects on UES peak relaxation pressure differ between age groups. Reduced pharyngeal peak pressure and increased UES relaxation pressure underscore the notion that tongue-hold swallows should not be performed when bolus is present. Long-term training effects remain to be investigated.
Publisher
American Speech Language Hearing Association
Subject
Speech and Hearing,Linguistics and Language,Developmental and Educational Psychology,Otorhinolaryngology
Cited by
26 articles.
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