Determining the Underlying Relationship between Swallowing and Maximum Vocal Pitch Elevation: A Preliminary Study of Their Hyoid Biomechanics in Healthy Adults

Autor/inn/en	Venkatraman, Anumitha; Fujiki, Robert Brinton; Craig, Bruce A.; Sivasankar, M. Preeti; Malandraki, Georgia A.
Titel	Determining the Underlying Relationship between Swallowing and Maximum Vocal Pitch Elevation: A Preliminary Study of Their Hyoid Biomechanics in Healthy Adults
Quelle	In: Journal of Speech, Language, and Hearing Research, 63 (2020) 10, S.3408-3418 (11 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Malandraki, Georgia A.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
Schlagwörter	Eating Disorders; Acoustics; Speech Language Pathology; Biomechanics; Adults; Physical Disabilities; Vowels; Human Body + Suchen Sie Ihr Suchwort? Appetite disorder; Essstörung; Akustik; Biomechanik; Physical handicap; Körperbehinderung; Menschlicher Körper
Abstract	Purpose: Deficiencies in swallowing (aspiration) and in maximum vocal pitch elevation have been shown to correlate in dysphagia. However, the underlying mechanisms that may explain this relationship are not known. In this study, we compare hyoid kinematics between swallowing and maximum vocal pitch elevation in healthy adults. Method: Ten young (M = 21 ± 1.33 years) and eight older (M = 72.85 ± 5.59 years) healthy adults completed trials of maximum vocal pitch elevation (vowels /a/ and /i/) and swallowing (thin liquid and pudding) under videofluoroscopy. Superior and anterior hyoid excursions were obtained using kinematic analysis. Two-way analyses of variance and Spearman rho correlations were used to examine differences and relationships between swallowing and maximum pitch elevation biomechanics. Results: Superior hyoid excursion was significantly greater for liquid swallows compared to pitch elevation tasks (/a/ and /i/; p = 0.002; Cohen's d = 1.28; p = 0.0179, Cohen's d = 1.03, respectively) and for pudding swallows compared to pitch tasks (p = 0.000, Cohen's d = 1.64; p = 0.001, Cohen's d = 1.38, respectively). Anterior hyoid excursion was not significantly different between the two functions, but was overall reduced in the older group (p = 0.0231, Cohen's d = 0.90). Furthermore, there was a moderate positive correlation between the degree of superior excursion during liquid swallows and maximum pitch elevation for both vowels (r[subscript s] = 0.601, p = 0.001; r[subscript s] = 0.524, p = 0.003) in young adults, and between the degree of anterior excursion during liquid swallows and pitch elevation for both vowels (r[subscript s] = 0.688, p = 0.001; r[subscript s] =0.530, p = 0.008) in older adults. Conclusions: Swallowing and maximum pitch elevation require similar anterior, but not superior, hyoid excursion in healthy adults. Differential correlations between the two tasks for each age group may be associated with age-related muscle changes. We provide evidence of partially shared biomechanics between swallowing and maximum pitch elevation. (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