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Electromyographic activity of masticatory muscles in elderly women – a pilot study

OBJECTIVES: To evaluate the effect of age and chosen factors related to aging such as dentition, muscle strength, and nutrition on masticatory muscles electromyographic activity during chewing in healthy elderly women. BACKGROUND: With longer lifespan there is a need for maintaining optimal quality...

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Autores principales: Gaszynska, Ewelina, Kopacz, Karolina, Fronczek-Wojciechowska, Magdalena, Padula, Gianluca, Szatko, Franciszek
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove Medical Press 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5238803/
https://www.ncbi.nlm.nih.gov/pubmed/28138227
http://dx.doi.org/10.2147/CIA.S118338
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author Gaszynska, Ewelina
Kopacz, Karolina
Fronczek-Wojciechowska, Magdalena
Padula, Gianluca
Szatko, Franciszek
author_facet Gaszynska, Ewelina
Kopacz, Karolina
Fronczek-Wojciechowska, Magdalena
Padula, Gianluca
Szatko, Franciszek
author_sort Gaszynska, Ewelina
collection PubMed
description OBJECTIVES: To evaluate the effect of age and chosen factors related to aging such as dentition, muscle strength, and nutrition on masticatory muscles electromyographic activity during chewing in healthy elderly women. BACKGROUND: With longer lifespan there is a need for maintaining optimal quality of life and health in older age. Skeletal muscle strength deteriorates in older age. This deterioration is also observed within masticatory muscles. METHODS: A total of 30 women, aged 68–92 years, were included in the study: 10 individuals had natural functional dentition, 10 were missing posterior teeth in the upper and lower jaw reconstructed with removable partial dentures, and 10 were edontoulous, using complete removable dentures. Surface electromyography was performed to evaluate masticatory muscles activity. Afterwards, measurement of masseter thickness with ultrasound imaging was performed, body mass index and body cell mass index were calculated, and isometric handgrip strength was measured. RESULTS: Isometric maximal voluntary contraction decreased in active masseters with increasing age and in active and passive temporalis muscles with increasing age and increasing body mass index. In active masseter, mean electromyographic activity during the sequence (time from the start of chewing till the end when the test food became ready to swallow) decreased with increasing age and during the cycle (single bite time) decreased with increasing age and increasing body mass index. In active and passive temporalis muscles, mean electromyographic activity during the sequence and the cycle decreased with increasing age, increasing body mass index, and loss of natural dentition. Individuals with natural dentition had significantly higher mean muscle activity during sequence and cycle in active temporalis muscles than those wearing full dentures and higher maximal activity during cycle in individuals with active and passive temporalis muscles than in complete denture wearers. CONCLUSION: Decrease in electromyographic activity of masticatory muscles in elderly women is related to age, deterioration of dental status, and body mass index.
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spelling pubmed-52388032017-01-30 Electromyographic activity of masticatory muscles in elderly women – a pilot study Gaszynska, Ewelina Kopacz, Karolina Fronczek-Wojciechowska, Magdalena Padula, Gianluca Szatko, Franciszek Clin Interv Aging Original Research OBJECTIVES: To evaluate the effect of age and chosen factors related to aging such as dentition, muscle strength, and nutrition on masticatory muscles electromyographic activity during chewing in healthy elderly women. BACKGROUND: With longer lifespan there is a need for maintaining optimal quality of life and health in older age. Skeletal muscle strength deteriorates in older age. This deterioration is also observed within masticatory muscles. METHODS: A total of 30 women, aged 68–92 years, were included in the study: 10 individuals had natural functional dentition, 10 were missing posterior teeth in the upper and lower jaw reconstructed with removable partial dentures, and 10 were edontoulous, using complete removable dentures. Surface electromyography was performed to evaluate masticatory muscles activity. Afterwards, measurement of masseter thickness with ultrasound imaging was performed, body mass index and body cell mass index were calculated, and isometric handgrip strength was measured. RESULTS: Isometric maximal voluntary contraction decreased in active masseters with increasing age and in active and passive temporalis muscles with increasing age and increasing body mass index. In active masseter, mean electromyographic activity during the sequence (time from the start of chewing till the end when the test food became ready to swallow) decreased with increasing age and during the cycle (single bite time) decreased with increasing age and increasing body mass index. In active and passive temporalis muscles, mean electromyographic activity during the sequence and the cycle decreased with increasing age, increasing body mass index, and loss of natural dentition. Individuals with natural dentition had significantly higher mean muscle activity during sequence and cycle in active temporalis muscles than those wearing full dentures and higher maximal activity during cycle in individuals with active and passive temporalis muscles than in complete denture wearers. CONCLUSION: Decrease in electromyographic activity of masticatory muscles in elderly women is related to age, deterioration of dental status, and body mass index. Dove Medical Press 2017-01-11 /pmc/articles/PMC5238803/ /pubmed/28138227 http://dx.doi.org/10.2147/CIA.S118338 Text en © 2017 Gaszynska et al. This work is published and licensed by Dove Medical Press Limited The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.
spellingShingle Original Research
Gaszynska, Ewelina
Kopacz, Karolina
Fronczek-Wojciechowska, Magdalena
Padula, Gianluca
Szatko, Franciszek
Electromyographic activity of masticatory muscles in elderly women – a pilot study
title Electromyographic activity of masticatory muscles in elderly women – a pilot study
title_full Electromyographic activity of masticatory muscles in elderly women – a pilot study
title_fullStr Electromyographic activity of masticatory muscles in elderly women – a pilot study
title_full_unstemmed Electromyographic activity of masticatory muscles in elderly women – a pilot study
title_short Electromyographic activity of masticatory muscles in elderly women – a pilot study
title_sort electromyographic activity of masticatory muscles in elderly women – a pilot study
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5238803/
https://www.ncbi.nlm.nih.gov/pubmed/28138227
http://dx.doi.org/10.2147/CIA.S118338
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