Pharyngeal Pressure Variability during Volitional Swallowing Maneuvers

Autor/inn/en	Teplansky, Kristin J.; Jones, Corinne A.
Titel	Pharyngeal Pressure Variability during Volitional Swallowing Maneuvers
Quelle	In: Journal of Speech, Language, and Hearing Research, 65 (2022) 1, S.136-145 (10 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Teplansky, Kristin J.) ORCID (Jones, Corinne A.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Human Body; Physiology; Motor Reactions; Psychomotor Skills; Neurological Impairments; Aging (Individuals); Physical Disabilities; Adults + Suchen Sie Ihr Suchwort? Menschlicher Körper; Physiologie; Psychomotorische Aktivität; Neurodegenerative Erkrankung; Aging; Altern; Physical handicap; Körperbehinderung
Abstract	Purpose: Within-individual pharyngeal swallowing pressure variability differs among pharyngeal regions in healthy individuals and increases with age. It remains unknown if pharyngeal pressure variability is impacted by volitional swallowing tasks. We hypothesized that pressure variability would increase during volitional swallowing maneuvers and differ among pharyngeal regions depending on the type of swallowing task being performed. Method: Pharyngeal high-resolution manometry was used to record swallowing pressure data from 156 healthy participants during liquid (5 cc) or saliva swallows, and during volitional swallowing tasks including effortful swallow, Mendelsohn maneuver, Masako maneuver, or during postural adjustments. The coefficient of variation was used to determine pressure variability of velopharynx, tongue base, hypopharynx, and upper esophageal sphincter regions. Repeated-measures analysis of variance was used on log-transformed data to examine effects of pharyngeal region and swallowing tasks on swallow-to-swallow variability. Results: There was a significant main effect of task with greater pressure variability for the effortful swallow (p = 0.002), Mendelsohn maneuver (p < 0.001), Masako maneuver (p = 0.002), and the head turn (p = 0.006) compared with normal effort swallowing. There was also a significant main effect of region (p < 0.01). In general, swallowing pressure variability was lower for the tongue base and upper esophageal sphincter regions than the hypopharynx. There was no significant interaction of task and region (effortful, p = 0.182; Mendelsohn, p = 0.365; Masako, p = 0.885; chin tuck, p = 0.840; head turn, p = 0.059; and inverted, p = 0.773). Conclusions: Pharyngeal swallowing pressure variability increases in healthy individuals during volitional swallowing tasks. Less stable swallow patterns may result when tasks are less automatic and greater in complexity. These findings may have relevance to swallowing motor control integrity in healthy aging and individuals with neurogenic dysphagia. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01