Publications by authors named "Keiko Motokawa"
Background: Community social capital is associated with various health outcomes; however, its impact on mortality is not fully understood, particularly in non-Western settings. This study examined the association between community-level social capital and all-cause mortality among community-dwelling older Japanese adults.
Methods: The baseline data were obtained from a 2015 questionnaire survey for all 132,005 residents aged ≥65 years without long-term care insurance certification in Adachi Ward (consisting of 262 small districts) of the Tokyo metropolitan area.
Background: By 2060, the global burden of dementia, particularly Alzheimer's disease (AD), is expected to increase significantly, necessitating effective palliative care strategies. Dysphagia, a common condition among people with dementia, leads to malnutrition, aspiration pneumonia, and a reduced quality of life.
Objective: This study aimed to identify oral health management factors that could predict a decline in swallowing function in older adults with AD.
Article Synopsis
- The study investigates why participation in "kayoi-no-ba," community dining places for older adults in Japan, is declining through a social marketing framework focusing on product, promotion, and place.
- A survey was conducted with 580 organizers, revealing that 26.6% of these community meals experienced a decline in participants, influenced by factors like event frequency, registration systems, and regional population demographics.
- Findings suggest that increasing monthly events and considering the local population characteristics could help maintain or boost attendance, while pricing does not seem to affect participation levels.
Article Synopsis
- This study explores how phase angle (PhA), derived from bioelectrical impedance analysis, relates to chronic inflammation markers in older adults, highlighting its potential as a reflection of cell membrane health and fluid balance.
- A total of 1664 participants were analyzed, revealing significant associations between abnormal levels of C-reactive protein and interleukin-6 with both whole-body and leg PhAs in men, particularly in those without chronic inflammation-related diseases.
- The findings suggest that while PhA can indicate inflammation in older men, it may require additional context for effective inflammation identification in women.
Background And Aims: Serum markers capable of detecting mild levels of undernutrition, such as insufficient dietary protein intake (IDPI), have not been established among community-dwelling older adults. Although the serum albumin redox state, expressed as the ratio of reduced albumin (Alb) to total Alb (the reduced albumin ratio), has the potential to overcome this challenge, empirical epidemiological data are lacking. This study aimed to investigate the association between a serum reduced Alb ratio and dietary protein intake among community-dwelling older adults.
View Article and Find Full Text PDFAim: Efforts to combat frailty and preserve good health in older adults have highlighted oral frailty as an early indicator of overall frailty. Individuals showing oral frailty are at an elevated risk of insufficient nutritional intake compared with those without oral frailty; however, underlying mechanisms remain poorly explored. In this cross-sectional study, we aimed to examine the link between oral frailty and undernutrition, especially regarding poor appetite and low dietary diversity.
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- In 2019, Japan's Ministry of Health highlighted the need for "Kayoi-no-ba" initiatives, but did not offer specific guidance or evaluation methods for local governments to implement these initiatives effectively.
- Researchers created a framework called "ACT-RECIPE," consisting of six evaluation phases: understanding needs, assessing current status, building teams, implementing initiatives, evaluating results, and making adjustments.
- The final framework was tested in 50 municipalities in Tokyo to score the effectiveness of their "Kayoi-no-ba" initiatives and analyze their correlation with the number of such initiatives available per 1,000 older residents.
Objective: This study aimed to develop a simpler approach for diagnosing sarcopenia by using only bioelectrical impedance vector analysis parameters.
Methods: The study design was a cross-sectional study. The research was conducted based on the Itabashi Longitudinal Study on Aging, a community-based cohort study, with data collected from the 2022 and 2023 surveys in Itabashi Ward, Tokyo, Japan.
Oral function evaluation in older adults with dementia is important for determining appropriate and practical dietary support plans; however, it can be challenging due to their difficulties in comprehending instructions and cooperating during assessments. The feasibility of oral function evaluation has not been well studied. This cross-sectional study aimed to determine the feasibility of oral function evaluation in older adults with Alzheimer's disease (AD) according to Functional Assessment Staging of Alzheimer's Disease (FAST) stages.
View Article and Find Full Text PDFSmartwatches (SW) are wearable devices that support daily life and monitor an individual's health and activity status. This information is utilized to promote behavior modification, which could help prevent chronic diseases and manage the health of older adults. Despite being interested in SWs, older adults tend to decrease their SW usage as they age.
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- Radio-Taiso is an exercise program in Japan that might help improve quality of life for older adults with frailty, and a study was conducted to test its effectiveness in this population.
- A 12-week trial with 226 older adults divided them into groups receiving either Radio-Taiso along with nutritional support or just nutritional support.
- The results showed that while those doing Radio-Taiso had better agility, endurance, and confidence in exercising, these improvements did not lead to a noticeable change in their overall health-related quality of life.
Aim: This cross-sectional study had two aims: to assess the prevalence of oral frailty (OF), according to the Oral Frailty 5-Item Checklist (OF-5), among community-dwelling older adults; and to examine the associations among oral frailty, dietary variety, social engagement, and physical frailty.
Methods: We pooled data from two population-based studies (the Otassha Study and the Itabashi Longitudinal Study on Aging). With the OF-5, OF is characterized by the presence of two or more of the following: (i) fewer teeth, (ii) difficulty in chewing, (iii) difficulty in swallowing, (iv) dry mouth, and (v) low articulatory oral motor skills.
Article Synopsis
- - The study aimed to assess fall risks among older adults in Japan by categorizing them based on their physical, mental, cognitive, and oral functions, as well as comorbidities.
- - Data from a survey of over 70,000 residents aged 65 and older revealed four distinct groups: good general condition, poor mental function, moderate physical function, and poor general condition.
- - The analysis indicated that those in the poor mental function, moderate physical function, and poor general condition groups had significantly higher odds of falling in the past year compared to those in the good general condition group, highlighting the importance of this classification for fall prevention strategies.
Aim: Although polypharmacy and frailty are concerns in older adults, there is limited understanding of their association, particularly regarding frailty severity and its phenotypes within this population. This study aimed to examine the association between polypharmacy and frailty severity or frailty phenotypes in community-dwelling older Japanese adults.
Methods: This cross-sectional study included 1021 older adults from the Itabashi Longitudinal Study on Aging.
Objective: Evaluating muscle quality instead of its mass has gained attention in diagnosing sarcopenia. The aim of this study was to examine whether phase angle (PhA) as a bioelectrical impedance analysis (BIA)-derived muscle quality indicator is associated with overall lower extremity function better than appendicular skeletal muscle mass index (ASMI) in community-dwelling older adults.
Methods: This cross-sectional study used data from the Itabashi Longitudinal Study on Aging, a community-based cohort study.
Aim: The Questionnaire for Medical Checkup of Old-Old (QMCOO) is a 15-item dichotomous questionnaire developed for the early detection and intervention of frailty in a nationwide health checkup program targeting the old-old (i.e. aged ≥75 years).
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- The study aimed to develop and validate a comprehensive model for assessing masticatory function, taking into account factors like muscle mass and chewing ability, particularly in older adults.
- Involving 753 participants with an average age of 73, it categorized them into groups with multiple masticatory dysfunction (MMD) and severe MMD (S-MMD) based on specific criteria.
- Findings revealed that S-MMD was associated with lower serum albumin levels and increased self-reported chewing difficulties, validating the model as an effective tool for identifying those at risk of masticatory issues.
Objectives: Although cognitive decline is a well-known mortality risk, it has not been adequately investigated, whether social relationships modify the relationship between cognitive decline and mortality. We examined the modifying effects of social relationships (household composition, social network [frequency of social contact with individuals outside the household], and social participation) on the association between cognitive decline and all-cause mortality in older Japanese people.
Methods: In 2015, a baseline questionnaire was distributed to all 132,005 independent community-dwelling individuals aged ≥65 years resident in Adachi Ward of the Tokyo Metropolitan area.
Aim: To assess the validity of self-reported articulatory oral motor skill against objectively measured repetitive articulatory rate (oral diadochokinesis [oral-DDK]) as a gold standard index for articulatory oral motor skill in community-dwelling older Japanese adults.
Methods: This cross-sectional study included 607 Japanese adults (mean age = 73.9 years).
Aim: To evaluate the association between vitamin D status and periodontal inflammation as determined by the periodontal inflamed surface area (PISA) in community-dwelling older adults.
Materials And Methods: This cross-sectional study included 467 Japanese adults (mean age = 73.1 years) who underwent full-mouth periodontal examinations and measurements of serum levels of 25-hydroxyvitamin D (25(OH)D).
Oral hygiene management issues vary across types and clinical stages of dementia. We aimed to clarify the issues related to oral hygiene management in older adults with Alzheimer's disease (AD) according to stages defined by the Functional Assessment Staging of Alzheimer's Disease (FAST). In all, 397 records (45 men and 352 women; average age, 86.
View Article and Find Full Text PDFAssociation between sarcopenia and oral functions in community-dwelling older adults: A cross-sectional study.
J Cachexia Sarcopenia Muscle
February 2023
Background: Few studies have examined the state of oral function in older adults with sarcopenia. We assessed the oral functions of community-dwelling older adults with sarcopenia from multiple perspectives to clarify their potentially low oral function.
Methods: A total of 1517 (86.