著者

Wenjing Zhao Shigekazu Ukawa Takashi Kawamura Kenji Wakai Masahiko Ando Kazuyo Tsushita Akiko Tamakoshi

出版者

日本疫学会

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20140190, (Released:2015-07-04)

参考文献数

39

被引用文献数

2 19

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Background: Regular physical activity contributes to the prevention of cancer, cardiovascular disease, and other chronic diseases. However, the frequency of physical activity often declines with age, particularly among the elderly. Thus, we investigated the effects of daily walking on mortality among younger-elderly men (65–74 years) with or without major critical diseases (heart disease, cerebrovascular disease, or cancer).Methods: We assessed 1239 community-dwelling men aged 64/65 years from the New Integrated Suburban Seniority Investigation Project. We estimated hazard ratios (HRs) of all-cause mortality and 95% confidence intervals (CIs) according to daily walking duration and adjusted for potential confounders, including survey year, marital status, work status, education, smoking and drinking status, BMI, regular exercise, regular sports, sleeping time, medical status, disease history, and functional capacity.Results: For men without critical diseases, mortality risk declined linearly with increased walking time after adjustment for confounders (Ptrend = 0.018). Walking ≥2 hours/day was significantly associated with lower all-cause mortality (HR 0.49; 95% CI, 0.27–0.90). For men with critical diseases, walking 1–2 hours/day showed a protective effect on mortality compared with walking <0.5 hours/day after adjustment for confounders (HR 0.29; 95% CI, 0.06–1.20). Walking ≥2 hours/day showed no benefit on mortality in men with critical diseases, even after adjustment for confounders.Conclusions: Different duration of daily walking was associated with decreased mortality for younger-elderly men with or without critical diseases, independent of sociodemographic and lifestyle factors, BMI, medical status, disease history, and functional capacity. Incorporating regular walking into daily lives of younger-elderly men may improve longevity and successful aging.

著者

Masashi Goto Takashi Kawamura Takuro Shimbo Osamu Takahashi Masahiko Ando Koichi Miyaki Takahiko Nohara Hidetsuna Watanabe Isamu Suzuki Mitsuru Aono for the Great Cold Investigators-II

出版者

The Japanese Society of Internal Medicine

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

vol.46, no.15, pp.1179-1186, 2007 (Released:2007-08-02)

参考文献数

17

被引用文献数

5 10

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Objective: To investigate whether loxoprofen, one of the nonsteroidal anti-inflammatory drugs, prolongs the recovery process of naturally acquired upper respiratory tract infections (URTIs) in the clinical setting. Methods: A double-blind, randomized, placebo-controlled trial was conducted in 23 outpatient facilities in Japan. Patients aged 18 through 65 years suffering from URTIs were randomly assigned to receive loxoprofen or its placebo. The primary outcome was duration of illness in days. Results: A total of 174 patients were available for the analyses. Duration of illness was 8.94 ± 3.20 days in the loxoprofen group compared to 8.39 ± 3.39 days in the placebo group (P=.19). The number of days with limited daily activities was fewer in the loxoprofen group than in the placebo group (2.12 ± 2.05 days vs. 2.68 ± 2.54 days, P=.17). Although severe symptoms were less frequent on days 1, 2, and 3 in the loxoprofen group (27%, 33%, and 29%, respectively) than in the placebo group (32%, 39%, and 37%, respectively), symptoms were more frequent on days 6 through 12 in the loxoprofen group (difference, 5-13%). Adverse events were more common in the loxoprofen group (9.5% vs. 1.1%, P=.051). Conclusion: Loxoprofen did not significantly modify the recovery process of URTIs except for a slight tendency to delay.

著者

Kayo Tanigawa-Sugihara Taku Iwami Chika Nishiyama Tetsuhisa Kitamura Masashi Goto Masahiko Ando Tatsuya Nishiuchi Yasuyuki Hayashi Takashi Kawamura

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.77, no.8, pp.2073-2078, 2013 (Released:2013-07-25)

参考文献数

35

被引用文献数

11 24

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Background: Weather conditions affect the occurrence of cardiovascular disease. The aim of this study was to investigate the associations between atmospheric conditions including temperature, pressure, and humidity, and the occurrence of out-of-hospital cardiac arrests (OHCAs) with cardiac etiology. Methods and Results: This study was a cross-sectional analysis of a prospective cohort that included all persons aged ≥18 years with OHCA in Osaka, from 1998 through 2007. The association between the number of daily OHCA events with various atmospheric conditions was analyzed using Poisson regression. A total of 28,806 adult OHCAs were presumed to be of cardiac etiology. The number of OHCAs in 1 day was inversely correlated with the day’s mean atmospheric temperature. The regression coefficient was greater on the days under 18°C (r=–0.317, P<0.001) than on days over 18°C (r=–0.088, P<0.001). A positive linear relation was found between the number of OHCAs in 1 day and the day’s mean atmospheric pressure (r=0.321, P<0.001). Under 18°C, every 5°C decrease in the daily mean temperature was associated with an 11% (95% confidence interval [CI]: 8–13%) increase in OHCA occurrence in the non-elderly group, and a 16% increase in the elderly group (95% CI: 14–19%). Conclusions: The occurrence of adult OHCA with cardiac etiology increases with decreasing temperature of the day. Elderly people are more susceptible to severe weather conditions.  (Circ J 2013; 77: 2073–2078)

著者

市原 剛 濱田 貴弘 浜田 信一郎 大栗信一 石井 喬文 渡辺 隆 大谷 和男 安藤 正彦 高橋 弘隆 中原 遼太郎 Go Ichihara Takahiro hamada Shinichiro hamada Shinichi ookuri Takafumi Ishii Takashi Watanabe Kazuo Ootani Masahiko Ando Hirotaka Takahashi Ryotaro Nakahara

雑誌

【全国大会】平成26年電気学会全国大会論文集

巻号頁・発行日

pp.145-146, 2014-03-05

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JR内房線の竹岡変電所は山間部に設置されており、東京電力の特高回線が付近に存在していない。この為隣接する佐貫町変電所にて東京電力受電した交流60kVを33kVに降圧し「き電補助線」を通じて電源供給を行っている。き電補助線は鳥害や樹木によるトリップが多く設備の老朽化も進み対策に苦慮している。当該変電所付近は単線で列車負荷も大きくない事から電力貯蔵装置を設置した場合に列車運転可能かを調査し、き電補助線と変電設備スリム化に繋がるか検証を行った。取り組み内容としては変電所にて負荷データ採取を行いシミュレーションを行ったところ2000kWの貯蔵装置を設置することで列車運転が可能であるとの結論に達した。