Effect of aging on oral and swallowing function after meal consumption
Open Access
- 1 January 2015
- journal article
- Published by Informa UK Limited in Clinical Interventions in Aging
- Vol. 10, 229-235
- https://doi.org/10.2147/cia.s75211
Abstract
Effect of aging on oral and swallowing function after meal consumption Tetsuya Hiramatsu,1,2 Hideyuki Kataoka,3 Mari Osaki,4 Hiroshi Hagino3,4 1Department of Speech Pathology and Audiology, Matsue Co-medical College, Matsue, Japan; 2Graduate School of Medical Sciences, Tottori University, 3School of Health Science, Faculty of Medicine, Tottori University, 4Rehabilitation Division, Tottori University Hospital, Yonago, Japan Background/purpose: Dysphagia may worsen due to fatigue of the infrahyoid and suprahyoid muscle groups as a result of repetitive swallowing during a meal. We investigated the hypothesis that meal consumption may reduce tongue strength and endurance in older adults (OAs).Methods: Tongue–palate pressure, oral diadochokinesis, repetitive saliva swallowing, and surface electromyography activity before and after a meal were measured in 23 young adults (YAs) and 23 OA volunteers.Results: There was a statistically significant difference in both tongue pressure and the number of voluntary swallows between YAs and OAs. Peak tongue pressure was significantly lower in OAs than YAs both before and after meal consumption. The most notable finding was that the first time interval (the time from test initiation to the beginning of the first swallow) was prolonged after meal consumption only in OAs, whereas the first time interval showed no difference between YAs and OAs before meal consumption with reference to the repetitive saliva swallowing test. The initiation of swallowing was prolonged by both meal consumption and aging; there was a significant interaction between these two factors. The number of repetitions of the monosyllable/pa/was statistically similar between YAs and OAs before meal consumption, but it was significantly lower in OAs after meal consumption.Conclusion: Aging leads to declining tongue pressure and motor function of the lips. It is possible that swallowing function declines in older individuals when meal consumption is prolonged, especially at the end of mealtime, as a result of their efforts in mastication and swallowing. Keywords: normal adults, dysphagia, fatigue, elderlyKeywords
This publication has 14 references indexed in Scilit:
- Effects of Dining on Tongue Endurance and Swallowing-Related OutcomesJournal of Speech, Language, and Hearing Research, 2010
- Evaluation of normal deglutition with the help of rectified surface electromyography records.Dysphagia, 2004
- Tongue Movements in Feeding and SpeechCritical Reviews in Oral Biology & Medicine, 2003
- Laryngeal elevation achieved by neuromuscular stimulation at restJournal of Applied Physiology, 2003
- Analysis of Feeding Function and Jaw Stability in Bedridden ElderlyDysphagia, 2002
- Age-related changes in motor unit functionMuscle & Nerve, 1997
- Augmentation of deglutitive upper esophageal sphincter opening in the elderly by exerciseAmerican Journal of Physiology-Gastrointestinal and Liver Physiology, 1997
- Enzyme-histochemical and morphological characteristics of muscle fibre types in the human buccinator and orbicularis orisArchives of Oral Biology, 1990
- Physiological changes in ageing musclesJournal of Neurology, Neurosurgery & Psychiatry, 1973
- A method for estimating the number of motor units in thenar muscles and the changes in motor unit count with ageingJournal of Neurology, Neurosurgery & Psychiatry, 1972