Effect of Tongue Exercise on Protrusive Force and Muscle Fiber Area in Aging Rats.
Purpose: Age-related changes in tongue function may contribute to dysphagia in elderly people. The authors' purpose was to investigate whether aged rats that have undergone tongue exercise would manifest increased protrusive tongue forces and increased genioglossus (GG) muscle fiber cross-sectional...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 52; no. 3; pp. 732 - 745 |
|---|---|
| Autores principales: | , , , , , |
| Formato: | Artículo |
| Publicado: |
American Speech-Language-Hearing Association
June 2009
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=508069648&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 508069648 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: June 2009 vid: 52 iid: 3 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 508069648 10.1044/1092-4388(2008/08-0105) ppf: 732 ppct: 13 formats: fmt: – @attributes: type: T – @attributes: type: P size: 405KB tig: atl: Effect of Tongue Exercise on Protrusive Force and Muscle Fiber Area in Aging Rats. aug: au: Connor, Nadine P. Russell, John A. Wang, Hao Jackson, Michelle A. Mann, Laura Kluender, Keith su: Deglutition disorders Age (Psychology) Laboratory rats Therapeutics sug: subj: Deglutition disorders Age (Psychology) Laboratory rats Therapeutics keyword: Tongue -- Aging -- Animal models ab: Purpose: Age-related changes in tongue function may contribute to dysphagia in elderly people. The authors' purpose was to investigate whether aged rats that have undergone tongue exercise would manifest increased protrusive tongue forces and increased genioglossus (GG) muscle fiber cross-sectional areas. Method: Forty-eight young adult, middle-aged, and old Fischer 344/Brown Norway rats received 8 weeks of tongue exercise. Protrusive tongue forces were measured before and after exercise. GG muscle fiber cross-sectional area was measured in exercised rats and was compared with cross-sectional areas in a no-exercise control group. Results: A significant increase in maximum tongue force was found following exercise in all age groups. In addition, a trend for increased GG muscle fiber cross-sectional area and a significant increase in variability of GG muscle fiber cross-sectional area was identified postexercise. Conclusion: The findings of this study have implications for treatment of elderly persons with dysphagia using tongue exercise programs. Specifically, increases in tongue force that occur following 8 weeks of progressive resistance tongue exercise may be accompanied by alterations in tongue muscle fiber morphology. These changes may provide greater strength and endurance for goal-oriented actions associated with the oropharyngeal swallow and should be investigated in future research. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
|---|