Physiological Variability in the Deglutition Literature: Hyoid and Laryngeal Kinematics
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A literature review was conducted on hyoid and/or laryngeal displacement during swallowing in healthy populations according to several inclusion criteria. Anterior and superior displacement measures of both structures from previously published studies were compiled for meta-analysis. Results showed a large degree of variability across studies for each structure and plane of movement. Potential sources of variation were identified, including statistical, methodological, stimulus-related, and participant-related sources.
KeywordsSwallowing Deglutition Hyoid Larynx Kinematics Movement Deglutition disorders
S. M. Molfenter receives funding for her doctoral studies from the Natural Sciences and Engineering Research Council (Canada) Create CARE program. C. M. Steele holds a New Investigator award from the Canadian Institutes of Health Research. The authors acknowledge the support of the Toronto Rehabilitation Institute which receives funding under the Provincial Rehabilitation Research Program from the Ministry of Health and Long-term Care in Ontario. The views expressed do not necessarily reflect those of the ministry.
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