A Kinematic Description of the Temporal Characteristics of Jaw Motion for Early Chewing: Preliminary Findings

Autor/inn/en	Wilson, Erin M.; Green, Jordan R.; Weismer, Gary
Titel	A Kinematic Description of the Temporal Characteristics of Jaw Motion for Early Chewing: Preliminary Findings
Quelle	In: Journal of Speech, Language, and Hearing Research, 55 (2012) 2, S.626-638 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2011/10-0236)
Schlagwörter	Human Body; Motion; Biomechanics; Time; Young Children; Adults; Age Differences; Reliability + Suchen Sie Ihr Suchwort? Menschlicher Körper; Bewegungsablauf; Biomechanik; Zeit; Frühe Kindheit; Age; Difference; Age difference; Altersunterschied; Reliabilität
Abstract	Purpose: The purpose of this investigation was to describe age- and consistency-related changes in the temporal characteristics of chewing in typically developing children between the ages of 4 and 35 months and adults using high-resolution optically based motion capture technology. Method: Data were collected from 60 participants (48 children, 12 adults) across 5 age ranges (beginners, 7 months, 12 months, 35 months, and adults); each age group included 12 participants. Three different food consistencies were trialed as appropriate. The data were analyzed to assess changes in chewing rate, chewing sequence duration, and estimated number of chewing cycles. Results: The results revealed both age- and consistency-related changes in chewing rate, sequence duration, and estimated number of chewing cycles, with consistency differences affecting masticatory timing in children as young as 7 months of age. Chewing rate varied as a function of age and consistency, and chewing sequence duration was shorter for adults than for children regardless of consistency type. In addition, the results from the estimated number of chewing cycles measure suggest that chewing effectiveness increased with age; this measure was also dependent on consistency type. Conclusions: The findings suggest that the different temporal chewing variables follow distinct developmental trajectories and are consistency dependent in children as young as 7 months of age. Clinical implications are detailed. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: subscribe@asha.org; Web site: http://jslhr.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10