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本研究は，有酸素性運動とレジスタンス運動の複合トレーニングにおける運動の順序性が，高齢男性の下肢の筋力・筋量に及ぼす影響，および形態や生活体力に及ぼす影響について検討することを目的とした．その結果，運動の順序性による差異は認められなかった．高齢男性における有酸素性運動とレジスタンス運動の複合トレーニングは，運動の順序性に関係なく下肢筋力・筋量や形態，生活体力を改善・向上させることが示唆された．, This study aimed to examine the effects of exercise order of combined aerobic and resistance training in the same session on body composition, physical fitness, lower limb muscle strength, and muscle mass in older men. In conclusion, no effects of the exercise order were observed in body composition, physical fitness, lower limb muscle strength, and muscle mass. We suggest that combined aerobic and resistance training increases muscle strength and muscle mass, improves physical fitness, and body composition in older men regardless of the exercise order., 原著(Original paper)

Background:Lower socioeconomic status (SES) may be related to inactivity lifestyle; however, the association between SES and physical inactivity has not been sufficiently investigated in Japan., Methods:The study population is the participants of NIPPON DATA2010, which is a prospective cohort study of the National Health and Nutrition Survey 2010 in Japan. They were residents in 300 randomly selected areas across Japan. This study included 2,609 adults. Physical activity was assessed by physical activity index (PAI) calculated from activity intensity and time. The lowest tertile of PAI for each 10-year age class and sex was defined as physical inactivity. Multivariable logistic regression analyses were conducted to examine the association of SES (employment status, educational attainment, living status, and equivalent household expenditure (EHE)) with physical inactivity., Results:In the distribution of PAI by age classes and sex, the highest median PAI was aged 30-39 years among men (median 38.6), aged 40-49 years among women (38.0), and median PAI was decreased with increasing age. Multivariable-adjusted model shows that not working was significantly associated with physical inactivity after adjustment for age in all age groups and sexes. Not living with spouse for adult women and elderly men was significantly associated with physical inactivity compared to those who living with spouse. However, neither educational attainment nor EHE had any significant associations with physical inactivity., Conclusions:The result indicated that physical inactivity was associated with SES in a general Japanese population. SES of individuals need to be considered in order to prevent inactivity lifestyle.

2018年11月28日～12月1日にスロベニアのリュブリャナで開催された11th European Public Health Conferenceに参加し、poster walkというセッションで発表した体験について報告をした。今回、発表した内容は大規模コホート調査である「NIPPON DATA2010」のベースラインデータを用い、日本人を代表する一般集団の身体不活動に関連する社会経済的要因について解析した"Association between socioeconomic status and physical inactivity: NIPPON DATA2010"という研究の結果である。, This report is about my participation in the 11th European Public Health Conference in Ljubljana, Slovenia and the presentation at the Poster Walk Session. My presentation was about analyzing the baseline data of "NIPPON DATA 2010" which is the large-scale cohort study in the Japanese representative population and examining the association between socioeconomic status and physical inactivity., 学会参加レポート(Report of participation)

日本人の1日の総身体活動量、テレビ視聴時間の実態を性・年齢階級別に把握し、どのような社会経済的要因を有する者が身体不活動に陥るリスクが高いのかを検討した。その結果、1日の総身体活動量は年齢が上がると低下しテレビ視聴時間は長くなっていた。また、身体不活動と社会経済的要因との関連について、いずれの身体不活動も非就労が共通し関連していたが、婚姻状況、教育歴については性・年代により異なる関連が認められた。, Doctor of Philosophy in Health and Sports Science, Doshisha University