文献一覧: Yuri Yokoyama (著者)

10 0 0 0 OA Combined Impacts of Physical Activity, Dietary Variety, and Social Interaction on Incident Functional Disability in Older Japanese Adults

著者: Satoshi Seino Yu Nofuji Yuri Yokoyama Takumi Abe Mariko Nishi Mari Yamashita Miki Narita Toshiki Hata Shoji Shinkai Akihiko Kitamura Yoshinori Fujiwara
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: pp.JE20210392, (Released:2021-12-18)
参考文献数: 47
被引用文献数: 9

Background: This 3.6-year prospective study examined combined impacts of physical activity, dietary variety, and social interaction on incident disability and estimated population-attributable fraction for disability reduction in older adults.Methods: Participants were 7,822 initially non-disabled residents (3,966 men and 3,856 women) aged 65–84 years of Ota City, Tokyo, Japan. Sufficiency of moderate-to-vigorous-intensity physical activity (MVPA) ≥150 min/week, dietary variety score (DVS) ≥3 (median), and social interaction (face-to-face and/or non-face-to-face) ≥1 time/week was assessed using self-administered questionnaires. Disability incidence was prospectively identified using the long-term care insurance system’s nationally unified database.Results: During a follow-up of 3.6 years, 1,046 (13.4%) individuals had disabilities. Independent multivariate-hazard ratios (HRs) and 95% confidence intervals (CIs) of MVPA, DVS, and social interaction sufficiency for incident disability were 0.68 (95% CI, 0.59–0.78), 0.87 (95% CI, 0.77–0.99), and 0.90 (95% CI, 0.79–1.03), respectively. Incident disability HRs gradually reduced with increased frequency of satisfying these behaviors (any one: HR 0.82; 95% CI, 0.65–1.03; any two: HR 0.65; 95% CI, 0.52–0.82; and all three behaviors: HR 0.54; 95% CI, 0.43–0.69), in an inverse dose-response manner (P < 0.001 for trend). Population-attributable fraction for disability reduction in satisfying any one, any two, and all three behaviors were 4.0% (95% CI, −0.2 to 7.9%), 9.6% (95% CI, 4.8–14.1%), and 16.0% (95% CI, 8.7–22.8%), respectively.Conclusion: Combining physical activity, dietary variety, and social interaction substantially enhances the impacts on preventing disability among older adults, with evidence of an inverse dose-response manner. Improving insufficient behavior elements through individual habits and preexisting social group activities may be effective in preventing disability in the community.

2022-05-18 02:03:42
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3 0 0 0 OA Validity of a Semi-Quantitative Food Frequency Questionnaire for Collegiate Athletes

著者: Ayaka Sunami Kazuto Sasaki Yoshio Suzuki Nobuhide Oguma Junko Ishihara Ayumi Nakai Jun Yasuda Yuri Yokoyama Takahiro Yoshizaki Yuki Tada Azumi Hida Yukari Kawano
出版者: 日本疫学会
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: pp.JE20150104, (Released:2016-02-20)
参考文献数: 39
被引用文献数: 26

Background: Food frequency questionnaires (FFQs) have been developed and validated for various populations. To our knowledge, however, no FFQ has been validated for young athletes. Here, we investigated whether an FFQ that was developed and validated to estimate dietary intake in middle-aged persons was also valid for estimating that in young athletes.Methods: We applied an FFQ that had been developed for the Japan Public Health Center-based Prospective Cohort Study with modification to the duration of recollection. A total of 156 participants (92 males) completed the FFQ and a 3-day non-consecutive 24-hour dietary recall (24hDR). Validity of the mean estimates was evaluated by calculating the percentage differences between the 24hDR and FFQ. Ranking estimation was validated using Spearman’s correlation coefficient (CC), and the degree of miscategorization was determined by joint classification.Results: The FFQ underestimated energy intake by approximately 10% for both males and females. For 35 nutrients, the median (range) deattenuated CC was 0.30 (0.10 to 0.57) for males and 0.32 (−0.08 to 0.62) for females. For 19 food groups, the median (range) deattenuated CC was 0.32 (0.17 to 0.72) for males and 0.34 (−0.11 to 0.58) for females. For both nutrient and food group intakes, cross-classification analysis indicated extreme miscategorization rates of 3% to 5%.Conclusions: An FFQ developed and validated for middle-aged persons had comparable validity among young athletes. This FFQ might be useful for assessing habitual dietary intake in collegiate athletes, especially for calcium, vitamin C, vegetables, fruits, and milk and dairy products.

2016-03-04 10:25:01
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2 0 0 0 OA Frequency of Balanced-Meal Consumption and Frailty in Community-Dwelling Older Japanese: A Cross-Sectional Study

著者: Yuri Yokoyama Akihiko Kitamura Mariko Nishi Satoshi Seino Yu Taniguchi Hidenori Amano Tomoko Ikeuchi Shoji Shinkai
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: pp.JE20180076, (Released:2018-11-17)
参考文献数: 41
被引用文献数: 5

Background: Although meals that combine a staple food, main dish, and side dish (balanced meals) are recommended in Japan, the health effects of such meals are unclear. We investigated the association of frequency of eating balanced meals with frailty among community-dwelling older Japanese.Methods: We analyzed data from 912 persons aged 65 years or older who participated in the Hatoyama Cohort Study or Kusatsu Longitudinal Study. The frequency of eating two or more balanced meals daily was self-reported as ≤1 day/week, 2 or 3 days/week, 4 or 5 days/week, and daily. Frailty was defined as the presence of at least three, and pre-frailty as the presence of one or two, of the following criteria: weight loss, muscle weakness, exhaustion, slowness, and low physical activity. Adjusted logistic regression was used to study associations of frequency of balanced-meal consumption with frailty (prefrailty and frailty combined) and frailty criteria.Results: Participants reporting a frequency of balanced-meal consumption of ≤2 or 3 days/week had a higher prevalence of frailty (odds ratio [OR], 1.79; 95% confidence interval [CI], 1.21–2.64) than did those reporting a frequency of daily. Lower frequency of balanced-meal consumption was also associated with higher prevalences of weight loss (OR, 4.10; 95% CI, 1.90–8.85), exhaustion (OR, 6.35; 95% CI, 2.49–16.17), and low physical activity (OR, 1.92; 95% CI, 1.22–3.01).Conclusions: Our findings suggest that more frequent twice daily consumption of meals with a staple food, main dish, and side dish decreases the risks of prefrailty and frailty.

2019-10-08 21:18:32
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1 0 0 0 OA Combined Impacts of Physical Activity, Dietary Variety, and Social Interaction on Incident Functional Disability in Older Japanese Adults

著者: Satoshi Seino Yu Nofuji Yuri Yokoyama Takumi Abe Mariko Nishi Mari Yamashita Miki Narita Toshiki Hata Shoji Shinkai Akihiko Kitamura Yoshinori Fujiwara
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: vol.33, no.7, pp.350-359, 2023-07-05 (Released:2023-07-05)
参考文献数: 47
被引用文献数: 9

2023-07-12 12:04:03
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1 0 0 0 OA Impact of the First–Fourth Waves of the COVID-19 Pandemic on New Applications for Long-term Care Insurance in a Metropolitan Area of Japan

著者: Satoshi Seino Shoji Shinkai Akihiko Kitamura Yu Nofuji Yuri Yokoyama Toshiki Hata Yoshinori Fujiwara
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: vol.32, no.11, pp.524-526, 2022-11-05 (Released:2022-11-05)
参考文献数: 8
被引用文献数: 1 2

2022-12-29 21:00:04
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1 0 0 0 OA Time-of-Day of Energy Intake Is Associated with Body Fat Percentage in Japanese Female University Rhythmic Gymnasts and Non-Athlete Students

著者: Saya MATSUSHITA Misuzu HASHIZUME Kumiko KISARA Yuri YOKOYAMA Ayaka KOTEMORI Yuki TADA Azumi HIDA Yukio YOSHIMURA Sakuko ISHIZAKI Yukari KAWANO
出版者: Center for Academic Publications Japan
雑誌: Journal of Nutritional Science and Vitaminology (ISSN:03014800)
巻号頁・発行日: vol.65, no.3, pp.233-241, 2019-06-30 (Released:2019-06-30)
参考文献数: 29
被引用文献数: 2

This study investigated whether body fat percentage (BF%) in Japanese female university rhythmic gymnasts (RG) and non-athletes (control) was associated with the time-of-day of energy intake. A total of 57 females (RG group, n=34; control group, n=23) completed 24-h dietary recall surveys on 3 non-consecutive days. BF% was measured using a bioelectrical impedance analyzer after overnight fasting. Energy intake was stratified by time-of-day: morning (3:00 to 11:00), midday (11:00 to 17:00), evening (17:00 to 21:00), and nighttime (21:00 to 3:00). There was no significant difference between the groups in total energy intake, body weight, or body mass index. The RG group had significantly higher energy expenditure, a larger negative energy balance and lower BF% than the control group. The energy intake ratios (ER%) in the evening and at nighttime in the RG group were significantly lower and higher than in the control group, respectively. Total energy intake and energy balance did not show any significant association with BF% in either group. Multivariate linear regression with substitution model indicated that a substitution of ER% in the morning for ER% at nighttime was negatively associated with BF% after adjusting for confounding factors (β=−0.240; 95% confidence interval (CI): −0.455, −0.025) in the control group. In the RG group, a substitution of ER% in the evening for ER% at nighttime was negatively associated with BF% (β=−0.117; 95%CI: −0.214, −0.019). These results suggest that the timing of energy intake throughout the day is associated with BF% in Japanese university RG and non-athlete female students.

2019-07-23 21:10:34
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1 0 0 0 OA A Community-Wide Intervention Trial for Preventing and Reducing Frailty Among Older Adults Living in Metropolitan Areas: Design and Baseline Survey for a Study Integrating Participatory Action Research With a Cluster Trial

著者: Satoshi Seino Akihiko Kitamura Yui Tomine Izumi Tanaka Mariko Nishi Kumiko Nonaka Yu Nofuji Miki Narita Yu Taniguchi Yuri Yokoyama Hidenori Amano Tomoko Ikeuchi Yoshinori Fujiwara Shoji Shinkai
出版者: Japan Epidemiological Association
雑誌: Journal of Epidemiology (ISSN:09175040)
巻号頁・発行日: pp.JE20170109, (Released:2018-06-30)
参考文献数: 47
被引用文献数: 29

Background: Preventing and reducing frailty is an important challenge for Japan in the next decade, especially in metropolitan areas. We launched a community-wide intervention trial (the Ota Genki Senior Project) in 2016 to develop effective community-based strategies for frailty prevention in metropolitan areas. This report describes the study design and baseline survey.Methods: This study is a community-wide intervention trial that integrates participatory action research into a cluster non-randomized controlled trial for adults aged 65 years or older living in Ota City, Tokyo. We allocated 3 of 18 districts to an intervention group and the other 15 to a control group. Using a mailed self-administered questionnaire, we conducted a baseline survey of 15,500 residents (8,000 and 7,500 in the intervention and control groups, respectively) from July through August 2016. In addition to socioeconomic status and lifestyle variables, we assessed frailty status (primary outcome) and physical, nutritional, and psychosocial variables (secondary outcomes). Based on the baseline findings, an intervention to improve outcomes will be implemented as participatory action research. Follow-up surveys will be conducted in the same manner as the baseline survey.Results: A total of 11,925 questionnaires were returned (76.9% response rate; 6,105 [76.3%] and 5,820 [77.6%] in the intervention and control groups, respectively), and 11,701 were included in the analysis (mean age, 74.3 [standard deviation, 5.5] years; 48.5% were men).Conclusions: This study is expected to contribute to development of a prototype of a community-wide frailty prevention strategy, especially in metropolitan areas in Japan. Trial registration: UMIN Clinical Trials Registry (UMIN000026515).

2018-07-11 23:04:11
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