Relationship between mild cognitive decline and oral motor functions in metropolitan community-dwelling older Japanese: The Takashimadaira study

Kugimiya, Yoshihiro; Ueda, Takayuki; Watanabe, Yutaka; Takano, Tomofumi; Edahiro, Ayako; Awata, Shuichi; Sakurai, Kazuo

doi:10.1016/j.archger.2018.11.008

Cited by 44 publications

(59 citation statements)

References 25 publications

(10 reference statements)

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“…In 2017, the National Center for Geriatrics and Gerontology launched the ''Integrated Longitudinal Studies on Aging in Japan'' (ILSA-J) with the collaboration of 13 longitudinal cohort studies on aging conducted in older people living in the community. [4][5][6][7][8][9][10][11][12][13][14][15][16] The cohorts identified for this research were considered to be representative of the Japanese older population and have relatively high accuracy. The cohort studies included in ILSA-J satisfied the following criteria: being conducted in Japan, including Japanese older adults 65 years of age and above living in the community, observational study on aging using standardized methods of measurement, and has published the study design.…”

Section: About Integrated Longitudinal Studies On Aging In Japanmentioning

confidence: 99%

Are Japanese Older Adults Rejuvenating? Changes in Health-Related Measures Among Older Community Dwellers in the Last Decade

Suzuki

Nishita

Jeong

et al. 2021

Rejuvenation Research

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During the last three decades, Japan has become one of the world's top countries for longevity, and the increase in average life expectancy is accompanied by a sharp rise in older population 65 years of age and above to *28%. This study aimed to examine the changes in major health-related measures, including a physical constitution, physical function, and functional capacity of community-dwelling Japanese older people in the last decade. From the data of 13 longitudinal cohort studies on aging conducted in Japan with a total of 13,441 older subjects, this study analyzed the changes in six indices that are related to health and functioning of the older people; height, weight, body mass index, walking speed, grip strength, and instrumental activity of daily living, between 2007 (-2 years) and 2017 (-2 years). Comparison of data for the two periods between subjects matched for age group and gender evidently showed better health status and a slower decline in most of the health-related measures in 2017 compared to a decade ago. The results of this study indicate that the phenomenon of ''rejuvenation'' is occurring among the new generation of Japanese older adults, and the importance of this older population as a social resource in the super-aged society should be reacknowledged.

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Section: About Integrated Longitudinal Studies On Aging In Japanmentioning

confidence: 99%

Are Japanese Older Adults Rejuvenating? Changes in Health-Related Measures Among Older Community Dwellers in the Last Decade

Suzuki

Nishita

Jeong

et al. 2021

Rejuvenation Research

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“…All TP values measured using the JMS are in the Japanese studies. [2][3][4]7,14,16,20,[22][23][24]33,35,37,38,41,42,44,46,47,49,51,[55][56][57][59][60][61]64,[73][74][75][76][77][78][79][80][81][82][83] It has been considered that TP values measured using the IOPI are slightly higher in the Chinese study 69 than in the European studies, 15,72 slightly lower than in the US studies, 17,34 and close to those in Korean study. 52 It is supposed that these differences among regions are caused by physical constitution such as height, weight or overall muscle mass, and chewing frequency, duration or patterns 52 as well as eating habits.…”

Section: F I G U R E 2 (Continued)mentioning

confidence: 99%

“…7,74 Only a single study reported on the association between TP and cognitive function 75. For future studies, measuring TP in cohorts with different levels of cognitive and/or physical function would add further information of its influence on TP.…”

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confidence: 99%

Variability in tongue pressure among elderly and young healthy cohorts: A systematic review and meta‐analysis

Arakawa

Igarashi

Imamura

et al. 2020

J of Oral Rehabilitation

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Objectives: Tongue pressure (TP) is used for the diagnosis of oral hypofunction; however, the impact of several variables on TP is unclear. Therefore, the current systematic review and meta-analysis aimed to analyse the variability in tongue pressure among healthy individuals aged ≥60 years vs <60 years. Secondary outcomes were the influence of gender and the type of measuring device (Iowa Oral Performance Instrument (IOPI) vs JMS tongue pressure measurement device (JMS)). Methods: PubMed and the Japanese database Ichushi-Web were searched systematically by two independent reviewers for studies reporting TP values in healthy populations. Clinical studies published between 1959 and June 2020 with more than 10 participants, written in English, German or Japanese, were included. A randomeffects meta-regression for aggregate-level data was applied (α < 0.05). Results: Sixty-eight studies reported TP for a total of 13 773 subjects aged <60 years (n = 3265) and ≥60 years (n = 10 508). TP was significantly higher in subjects <60 years (estimated weighted mean (EWM) ± standard error = 51.9 ± 1.28 kPa; 95% CI = 49.4-54.4) relative to those ≥60 (EWM = 34.7 ± 0.94 kPa; 95% CI = 32.8-36.5) (P < .001), men (EWM = 45.9 ± 2.09 kPa; 95% CI = 41.8-50.0) relative to women (EWM = 39.3 ± 1.68 kPa; 95% CI = 36.0-42.6) (P = .015) and when assessed with the IOPI (EWM = 51.9 ± 1.32 kPa; 95% CI = 49.3-54.5) compared to the JMS (EWM = 33.5 ± 0.63 kPa; 95% CI = 32.2-34.7) (P < .001). In terms of gender, there was no significant difference in TP among subjects ≥60 years (P = .282). However, in subjects younger than 60, a significant difference was observed (P = .004). Conclusions: Healthy populations aged <60 years showed significantly higher TP than those aged ≥60 years. TP values ascertained by the IOPI are significantly higher than those obtained with the JMS.

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“…It has been recently reported that a decrease in oral function is a risk factor for physical frailty, sarcopenia, cognitive decline and lower quality of life. [1][2][3][4][5][6] Since a decrease in oral function also influences the general health of older adults, it is important to identify and treat such individuals with decreased oral function.…”

Section: Introductionmentioning

confidence: 99%

Rate of oral frailty and oral hypofunction in rural community‐dwelling older Japanese individuals

et al. 2020

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Objective: To clarify the rate of oral frailty and oral hypofunction in rural communitydwelling older adults in Japan. Background: Recently, the oral function of Japanese older adults has been evaluated multilaterally based on two concepts: oral frailty and oral hypofunction. Oral frailty is defined as a decrease in the oral function accompanied by a decrease in mental and physical functions. Oral hypofunction is a disease where the oral function is comprehensively decreased. However, their rates have not yet been elucidated. Materials and methods: Oral frailty and oral hypofunction were evaluated in 679 older adults from rural areas. To investigate the differences in occurrence rates due to the evaluation methods, one of the subordinate symptoms of oral hypofunction, the reduced occlusal force, was evaluated based on both the occlusal force (main method) and the number of teeth (alternative method). Results: The rate of oral frailty was 22.3% in men and 22.7% in women. The rate of oral hypofunction was 39.0% in men and 46.9% in women. The overall rate of oral hypofunction was 43.6% when the reduced occlusal force of oral hypofunction was evaluated using the main method and 46.4% when evaluated using the alternative method. The proportion of participants with decreased occlusal force, the number of present teeth, oral diadochokinesis, tongue pressure and masticatory performance increased with age in both men and women. | 343 KUGIMIYA et Al.

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Relationship between mild cognitive decline and oral motor functions in metropolitan community-dwelling older Japanese: The Takashimadaira study

Cited by 44 publications

References 25 publications

Are Japanese Older Adults Rejuvenating? Changes in Health-Related Measures Among Older Community Dwellers in the Last Decade

Are Japanese Older Adults Rejuvenating? Changes in Health-Related Measures Among Older Community Dwellers in the Last Decade

Variability in tongue pressure among elderly and young healthy cohorts: A systematic review and meta‐analysis

Rate of oral frailty and oral hypofunction in rural community‐dwelling older Japanese individuals

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