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Effects of repeated swallows and var...

Kleinjan Ayala, Kara J.

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Effects of repeated swallows and varied bolus characteristics in young and elderly subjects.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Effects of repeated swallows and varied bolus characteristics in young and elderly subjects./
Author:	Kleinjan Ayala, Kara J.
Description:	176 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 3101.
Contained By:	Dissertation Abstracts International66-06B.
Subject:	Health Sciences, Speech Pathology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3177748
ISBN:	9780542173370

Effects of repeated swallows and varied bolus characteristics in young and elderly subjects.
Kleinjan Ayala, Kara J.

Effects of repeated swallows and varied bolus characteristics in young and elderly subjects. - 176 p.

Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 3101.

Thesis (Ph.D.)--Northwestern University, 2005.

This study examined the effects of alterations in bolus sensory characteristics of temperature, taste and viscosity in oropharyngeal swallow function in healthy young, old, and very old subjects. Additionally, this study examined the nature of swallow changes in relation to use over a lengthy swallow protocol.

ISBN: 9780542173370Subjects--Topical Terms:

1018105
Health Sciences, Speech Pathology.

Effects of repeated swallows and varied bolus characteristics in young and elderly subjects.
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020 $a 9780542173370
035 $a (UnM)AAI3177748
035 $a AAI3177748
040 $a UnM $c UnM
100 1 $a Kleinjan Ayala, Kara J. $3 1909411
245 1 0 $a Effects of repeated swallows and varied bolus characteristics in young and elderly subjects.
300 $a 176 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 3101.
500 $a Adviser: Jerilyn A. Logemann.
502 $a Thesis (Ph.D.)--Northwestern University, 2005.
520 $a This study examined the effects of alterations in bolus sensory characteristics of temperature, taste and viscosity in oropharyngeal swallow function in healthy young, old, and very old subjects. Additionally, this study examined the nature of swallow changes in relation to use over a lengthy swallow protocol.
520 $a Subjects included 30 adults, divided into three age groups (20--30, 60--70; 80--90 years). All subjects were healthy with no history of swallowing disorders. Videofluorographic swallow studies were conducted to examine the following: duration of base of tongue to posterior pharyngeal wall contact, laryngeal elevation, laryngeal closure, and cricopharyngeal opening duration, pharyngeal delay time, and oropharyngeal swallow efficiency. Frequency/amount of penetration and aspiration and additional clearing swallows were also obtained.
520 $a Subjects completed a total of 45 swallows. All swallows were individual self-selected sips of liquid from a cup. Three boluses containing the following sensory alterations were randomly administered: sour taste, sweet taste, cold temperature, sour taste+cold, and pudding-thick. Subjects were also administered plain liquid swallows at the beginning, middle, and end of the entire protocol.
520 $a A mixed within and between group analysis of variance (ANOVA) procedure revealed significant differences in oropharyngeal swallow efficiency (OPSE) between the oldest groups compared to the young for all bolus conditions. OPSE scores were significantly lower in the last set of swallows (43--45) compared to the first set (1--3) when collapsed across age groups. The sour and cold+sour conditions demonstrated significantly higher OPSE scores compared to that of the other bolus conditions, for all age groups. Interestingly, duration of base of tongue contact to posterior pharyngeal wall in the very old group more closely resembled that of the youngest group. Penetration and aspiration frequencies were substantially higher in both elderly groups. Three of the oldest subjects aspirated; less than half of the instances of aspiration elicited a cough response.
520 $a It appears that the swallowing mechanism is a physiologic system that successfully ages, but is susceptible to many normal age-related changes. Despite these differences, swallow safety and efficiency does not appear to be substantially compromised in any age group over a series of 45 swallows.
590 $a School code: 0163.
650 4 $a Health Sciences, Speech Pathology. $3 1018105
690 $a 0460
710 2 0 $a Northwestern University. $3 1018161
773 0 $t Dissertation Abstracts International $g 66-06B.
790 1 0 $a Logemann, Jerilyn A., $e advisor
790 $a 0163
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3177748