SAWADA, Susumu

写真a

Affiliation

Faculty of Sport Sciences, School of Sport and Sciences

Job title

Professor

Homepage URL

https://sites.google.com/site/sssawadalab/home

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Concurrent Post 【 display / non-display 】

  • Affiliated organization   Global Education Center

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Education 【 display / non-display 】

  • 1983.04
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    1985.03

    Juntendo University   Graduate School of Health and Sports Science  

  • 1983.04
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    1985.03

    Juntendo University   Graduate School of Health and Sports Science  

  • 1979.04
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    1983.03

    Fukuoka University   Department of Sports Science   体育学科  

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Degree 【 display / non-display 】

  • Juntendo University   Ph.D. in medicine

  • 順天堂大学   博士（医学）

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Research Experience 【 display / non-display 】

  • 2018.04
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    Waseda University   Faculty of Sport Sciences   教授

  • 2016.04
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    2018.03

    Waseda University   School of Sport Sciences   非常勤講師

  • 2014.04
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    2018.03

    National Institutes of Biomedical Innovation, Health and Nutrition   栄養と身体活動に関する国際協力ユニット   ユニット研究員

  • 2014.04
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    2018.03

    International Budo University   Graduate School Budo and Sports Research Course   非常勤講師

  • 2012.07
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    2018.03

    National Institutes of Biomedical Innovation, Health and Nutrition   健康増進研究部   室長

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Professional Memberships 【 display / non-display 】

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    American College of Sports Medicine

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    日本臨床運動療法学会

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    日本健康支援学会

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    日本生涯スポーツ学会

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    日本体育学会

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Research Areas 【 display / non-display 】

  • Nutrition science and health science   Sports epidemiology

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Research Interests 【 display / non-display 】

  • Health science

  • Biostatistics

  • Public health

  • Epidemiology

  • Sports epidemiology

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Papers 【 display / non-display 】

  • The association of fitness and fatness with intermediate hyperglycemia incidence in women: A cohort study

    Robert A. Sloan, Youngdeok Kim, Susumu S. Sawada, I-Min Lee, Xuemei Sui, Steven N. Blair

    PREVENTIVE MEDICINE   148   106552 - 106552  2021.07  [International journal]

    　View Summary

    The purpose of this study was to examine the associations of cardiorespiratory fitness, general adiposity, and central adiposity with incident intermediate hyperglycemia (IH) in women. We conducted a prospective cohort study of 1534 women aged 20-79 years old who had an annual health check-up with no history of major chronic diseases. At baseline, fitness was assessed by a Balke graded exercise test, and the estimated metabolic equivalents were used to create quartile groups. Women were also grouped based on their body mass index ( 25 kg/ m2, 25-29.9 kg/m2, and 30 kg/m2) and waist-to-height ratio (>0.50 or < 0.50). Cox proportional hazards models were conducted to assess the association of fitness and fatness variables with incident IH defined as fasting glucose of 5.6-6.9 mmol/L. Overall, 18.1% (n = 277) of the women developed IH during an average follow-up of 5.06 years. Fitness, body mass index, and waist-to-height ratio at baseline were the independent predictors of the IH incidence in separate age-adjusted models; yet when all three variables were included in the same model along with confounding variables, only fitness remained significant and demonstrated a clear inverse association with incident IH (P-for-trend <0.001). Health promotion efforts should focus on improving fitness for the prevention of IH in women.

    DOI PubMed

  • [Effect of an exercise program targeting knee pain on medical costs of elderly community-dwelling adults].

    Takuya Yamada, Yoshiharu Fukuda, Shinichiro Sato, Kazushi Maruo, Mutsumi Nakamura, Yuta Nemoto, Noriko Takeda, Susumu Sawada, Yoshinori Kitabatake, Takashi Arao

    [Nihon koshu eisei zasshi] Japanese journal of public health   68 ( 5 ) 331 - 338  2021.06  [Domestic journal]

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    Objectives The aim of this study was to examine the effect of an exercise program targeting knee pain on longitudinal medical costs (MC) of elderly community-dwelling adults.Methods A community-based health program using specific exercises for improving knee pain was held from January to February, 2015. Twenty-eight individuals participated in the program (intervention group) and seventy individuals were selected from the respondents of a health and lifestyle survey by matching age, sex, and baseline value of severity of knee pain as a control group. Twenty individuals from the intervention group and twenty-nine from the control group were included in the final analysis. The changes in MC from 2014 to 2018 were compared between the two groups using a linear mixed-effects model.Results The effect of the program on MC, estimated as a change from the baseline in 2014, showed a reduction of -5.6×103 yen/person (95% CI: -39.2-28.0) for the entire four-year period after the intervention. However, this difference was not significant. The changes in MC each year after the intervention were 9.3×103 yen/person (95% CI: -39.6-58.3) in 2015, -2.0×103 yen/person (95% CI: -44.4-40.5) in 2016, -10.3×103 yen/person (95% CI: -42.5-21.9) in 2017, and 8.2×103 yen/person (95% CI: -39.1-55.4) in 2018.Conclusion The exercise program did not show a clear benefit in reducing the MC of elderly community-dwellers during the four years after the intervention. Further research with longer study durations and larger sample populations would be necessary to determine the effect of such intervention programs on MC.

    DOI PubMed

  • Determinants of Resting Oxidative Stress in Middle-Aged and Elderly Men and Women: WASEDA'S Health Study

    Takuji Kawamura, Kumpei Tanisawa, Ryoko Kawakami, Chiyoko Usui, Tomoko Ito, Hiroki Tabata, Nobuhiro Nakamura, Sayaka Kurosawa, Wonjun Choi, Sihui Ma, Zsolt Radak, Susumu S. Sawada, Katsuhiko Suzuki, Kaori Ishii, Shizuo Sakamoto, Koichiro Oka, Mitsuru Higuchi, Isao Muraoka

    OXIDATIVE MEDICINE AND CELLULAR LONGEVITY   2021   5566880 - 5566880  2021.06  [International journal]

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    Previous studies have not investigated the determinants of resting oxidative stress, including physical fitness, as it relates to redox regulation. The present study therefore was aimed at identifying lifestyle and biological factors that determine resting oxidative stress, including objectively measured physical fitness. In 873 middle-aged and elderly men and women, age and anthropometric parameters, lifestyle-related parameters, medication and supplementation status, physical fitness, biochemical parameters, and nutritional intake status, as well as three plasma oxidative stress markers: protein carbonyl (PC), F-2-isoprostane (F-2-IsoP), and thiobarbituric acid reactive substances (TBARS), were surveyed and measured. The determinants of PC, F-2-IsoP, and TBARS in all participants were investigated using stepwise multiple regression analysis. In PC, age (beta=-0.11, P=0.002), leg extension power (beta=-0.12, P=0.008), BMI (beta=0.12, P=0.004), and HDL-C (beta=0.08, P=0.040) were included in the regression model (adjusted R2=0.018). In the F-2-IsoP, smoking status (beta=0.07, P=0.060), BMI (beta=0.07, P=0.054), and HbA1c (beta=-0.06, P=0.089) were included in the regression model (adjusted R2=0.006). In TBARS, glucose (beta=0.18, P<0.001), CRF (beta=0.16, P<0.001), age (beta=0.15, P<0.001), TG (beta=0.11, P=0.001), antioxidant supplementation (beta=0.10, P=0.002), and HbA1c (beta=-0.13, P=0.004) were included in the regression model (adjusted R2=0.071). In conclusion, the present study showed that age, anthropometric index, lifestyle-related parameters, medication and supplementation status, objectively measured physical fitness, biochemical parameters, and nutritional intake status explain less than 10% of oxidative stress at rest.

    DOI PubMed

  • [Associations between psychological attitudes toward exercise and fitness club membership resignation among new members: A cohort study].

    Nobumasa Kikuga, Noritoshi Fukushima, Susumu Sawada, Munehiro Matsushita, Yuko Gando, Natsumi Watanabe, Yuko Hashimoto, Yoshio Nakata, Shigeru Inoue

    [Nihon koshu eisei zasshi] Japanese journal of public health   68 ( 4 ) 230 - 240  2021.04  [Domestic journal]

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    Objectives Approximately 40% of new fitness club (FC) members drop out within the first six months; however, the factors associated with FC membership resignation are largely unknown. This study aimed to identify the association between psychological attitudes toward exercise and FC membership resignation.Methods We conducted a cohort study enrolling participants from 17 FCs. All individuals who became members at FCs between April 1st, 2015 and March 31st, 2016 (n=5,421) were invited to participate in the study, and those who agreed to participate completed a self-administered baseline questionnaire (n=2,934). We excluded participants aged <20 years (n=167) and those with missing values (n=702). Psychological factors were evaluated using the short version of the perceived benefit and barriers to exercise scale. Participants were followed until September 30th, 2016, at which time we assessed the FC membership drop-out rate. Cox proportional-hazards models were used to evaluate the association between perceived benefits/barriers of exercise and FC membership resignation. Sub-analyses were then conducted, stratifying by gender and age group.Results A total of 2,065 participants were included in the analyses. The mean (standard deviation) age was 39.0 (15.0) years and 28.8% were male. Over 10.1 (4.4) months of newly-joined member follow-up, the FC membership drop-out rate was 24.6 instances per 1000 person-months. Multivariable analyses revealed no significant factors associated with FC membership drop-out. However, men aged 40-59 years who had a high physical benefit score and who perceived improving physical fitness as a benefit, were less likely to resign their memberships (hazard ratio [HR], 95% confidence interval [CI], 0.72 [0.52-1.00]). However, women aged <40 years with a high discomfort score and who saw discomfort as a barrier were more likely to resign membership (HR, 1.10 [1.01-1.19]). Women aged 40-59 years with high social benefit scores and who perceived social interaction as a benefit were less likely to resign their memberships, as were women with higher lack of motivation to exercise scores and who perceived lack of motivation as a barrier to exercise (HR for social benefit, 0.84 [0.74-0.97]; HR for lack of motivation, 0.85 [0.73-0.99]). Among both male and female participants aged ≥60 years, higher self-improvement scores, indicating that peer recognition was perceived as a benefit of exercise, was associated with higher HR for drop-out (men, 2.52 [1.10-5.81]; women, 1.31 [1.00-1.72]).Conclusions The results revealed gender and age differences in the association between the perceived benefits/barriers of exercise and FC membership dropout. Implementing programs based on enrollees' characteristics and psychological factors may contribute to preventing FC dropout in the future.

    DOI PubMed

  • Physical Fitness and Dyslipidemia Among Japanese: A Cohort Study From the Niigata Wellness Study

    Haruki Momma, Kiminori Kato, Susumu S. Sawada, Yuko Gando, Ryoko Kawakami, Motohiko Miyachi, Ryoichi Nagatomi, Minoru Tashiro, Yasuhiro Matsubayashi, Satoru Kodama, Midori Iwanaga, Kazuya Fujihara, Hirohito Sone

    JOURNAL OF EPIDEMIOLOGY   31 ( 4 ) 287 - 296  2021.04  [Domestic journal]

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    Background: Grip strength reflects systemic muscle strength and mass and is reportedly associated with various metabolic variables. However, its prognostic association with dyslipidemia is unknown. We examined the association of grip strength and other physical fitness markers with the incidence of dyslipidemia among Japanese adults.Methods: A total of 16,149 Japanese (6,208 women) individuals aged 20-92 years who underwent a physical fitness test between April 2001 and March 2002 were included in this cohort study. Grip strength, vertical jump, single-leg balance with eyes closed, forward bending, and whole-body reaction time were evaluated at baseline. Dyslipidemia was annually determined based on fasting serum lipid profiles and self-reported dyslipidemia from April 2001 to March 2008.Results: During the follow-up period, 4,458 (44.9%) men and 2,461 (39.6%) women developed dyslipidemia. A higher relative grip strength (grip strength/body mass index) was associated with a lower incidence of dyslipidemia among both men and women (P for trend <0.001). Compared with those for the first septile, the hazards ratios and 95% confidence intervals (CIs) for the seventh septile were 0.56 (95% CI, 0.50-0.63) for men and 0.69 (95% CI, 0.58-0.81) for women. Moreover, relative vertical jump (vertical jump strength/body mass index) was also inversely associated with the incidence of dyslipidemia among both men and women (P for trend <0.001). There was no association between other physical fitness and dyslipidemia among both men and women.Conclusion: Relative grip strength and vertical jump may be useful risk markers of the incidence of dyslipidemia.

    DOI PubMed

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Books and Other Publications 【 display / non-display 】

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Misc 【 display / non-display 】

  • Cardiorespiratory Fitness and Prevalence of Lifestyle-related Diseases In Japanese Men And Women: WASEDA'S Health Study

    Susumu S. Sawada, Ryoko Kawakami, Kumpei Tanisawa, Hiroki Tabata, Nobuhiro Nakamura, Kim Hyeon-Ki, Masayuki Konishi, Tomoko Ito, Chiyoko Usui, Taishi Midorikawa, Mitsuru Higuchi, Katsuhiko Suzuki, Suguru Torii, Lee I-Min, Steven N. Blair, Isao Muraoka, Kaori Ishii, Koichiro Oka, Shizuo Sakamoto

    MEDICINE AND SCIENCE IN SPORTS AND EXERCISE   51 ( 6 ) 218 - 219  2019.06

    Research paper, summary (international conference)  

    DOI

  • 平成30年度日本スポーツ協会スポーツ医・科学専門委員会IV 東京オリンピック記念体力測定の総括-第1報- (第9章)1964年東京オリンピック大会参加選手の全身持久力と高血圧罹患 コホート研究

    澤田 亨, 川上 諒子, 岡 浩一朗, 坂本 静男, 岡田 純一, 樋口 満, 長阪 裕子, 青野 博, 石塚 創也, 山田 早智子, 川原 貴

    日本スポーツ協会スポーツ医・科学研究報告集   2018年度   63 - 66  2019.03

  • 余暇身体活動時間および歩行業務時間と尿路結石症発症の関係 新潟ウェルネス・スタディ

    澤田 亨, 川上 諒子, 丸藤 祐子, 田代 稔, 加藤 公則, 曽根 博仁

    人間ドック   33 ( 2 ) 346 - 346  2018.08

  • 日本人における柔軟性と高血圧罹患の関係 コホート研究 Niigata Wellness Study

    丸藤 祐子, 澤田 亨, 門間 陽樹, 川上 諒子, 宮地 元彦, 田代 稔, 加藤 公則, 曽根 博仁

    人間ドック   33 ( 2 ) 334 - 334  2018.08

  • Statement of Endorsing “FUN+WALK PROJECT”, a New Project Led by Japan Sports Agency

    apanese Association of, Exercise Epidemiology, Official Statement, Committee, Yamamoto N, Kuwahara K, Gando Y, Kunii M, Kono H, Sawada SS

    Research in Exercise Epidemiology   20 ( 1 ) 49 - 53  2018.03

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Awards 【 display / non-display 】

  • 奨励賞

    2015.11   日本公衆衛生学会   日本公衆衛生学会 奨励賞

  • 功労賞

    2013.10   全国THP推進協議会   全国THP (Total Health Promotion Plan) 推進協議会 功労賞

  • 緑十字賞

    2010.10   中央災害防止協会   中央労働災害防止協会 緑十字賞

  • 1st Place Winners

    2008.03   United State Navy   1st Place Winners of the 10th Operational Research Competition in conjunction with the 47th Navy Occupational Health and Preventive Medicine Conference

  • 奨励賞

    2004.04   日本産業衛生学会   日本産業衛生学会 奨励賞

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Research Projects 【 display / non-display 】

  • 日本人の健康寿命延伸の鍵を解明する包括的スポーツ科学研究

    基盤研究B（一般）

    Project Year :

    2019.04
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    2024.03
     

  • 青年アスリートのスポーツ傷害を未然に予防するための包括的な大規模スポーツ疫学研究

    Project Year :

    2020.04
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    2023.03
     

    　View Summary

    毎年、多くの青年アスリートがスポーツ傷害に苦しんでいる。スポーツ傷害を未然に予防するためには、傷害の発生を予測して事前に予防のための対応をすることが重要である。そこで、本研究はさまざまなスポーツ種目を実施している約15,000人の青年アスリートを対象にして実施された30項目の整形外科的メディカルチェックの結果と、整形外科的メディカルチェック実施後のスポーツ傷害発生の関係を疫学的に調査し、整形外科的メディカルチェックのどの項目が、どのようなスポーツ種目の、どのような傷害の発生と関係しているかを明らかにして、青年アスリートのスポーツ傷害を予防するためのエビデンス（科学的根拠）を提供する

  • 東京大学の学生の過去50年の体力測定データを活用したヒストリカルコホート研究

    Project Year :

    2016.04
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    2020.03
     

    　View Summary

    本研究は、大学1年次の体力の長期トレンドを検証する連続横断研究と、体力とその後の健康、生活習慣、社会的活動との関係を検証するヒストリカル・コホート研究からなる。収集したデータは1961年～2015年に東京大学教養学部に入学した者ほぼ全員の体力テスト結果約160,000件、2018年9月に実施した追跡調査約5000件である。東京大学では必修の体育実技授業の一環で入学直後の4月と12月に、垂直とび（下肢筋パワー）、反復横とび（敏捷性）、腕立て伏せ（筋力・筋持久力）、踏み台昇降（全身持久力）の4種目を測定している。追跡調査では生活習慣病を中心とした疾病発症、メンタルヘルス、経済状況等を郵送またはウェブ調査により把握した。体格の経時変化については、身長は1992年頃まで伸びているがその後は横ばいであること、体重は同じく1992年頃（概ねバブル期の終盤か直後）まで増えているが、そこから下降していること、肥痩度を示すbody mass index（BMI）も体重と同様の経過を辿ること、特に女子学生でやせ（BMI<18.5kg/m2）の該当割合がここ20年間で30%以上に達していることが明らかとなった。体力については、特に垂直とびが体重と同じく1992年頃までは向上したが、その後は低下する傾向にあった。また、4月と12月で明らかな向上がみられた体力テスト項目は、腕立て伏せ（筋力・筋持久力）と踏み台昇降（全身持久力）であった。縦断的な解析では、体力（特に腕立て伏せ）が高い人ほど、メンタル不調の診断を受けたと報告するリスクが低いこと、性・年代別にみて最高年収が高い集団となりやすいことが明らかとなった。総じて体力が優れていることの有益性が示された。今後はこれらの解析をより詳細に進めるとともに、糖尿病や高血圧等の生活習慣病、サルコペニアやロコモティブシンドロームなど高齢期における筋骨格系の健康指標などをアウトカムとした解析も同時に進め、国際誌に成果を発信していきたい。令和元年度が最終年度であるため、記入しない。令和元年度が最終年度であるため、記入しない

  • 身体活動増加のための社会環境改善に資する科学的根拠を確立するための包括的疫学研究

    基盤研究C（一般）

    Project Year :

    2015.04
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    2018.03
     

  • 健康増進施設の現状把握と標準的な運動指導プログラムの開発および効果検証と普及促進

    Project Year :

    2017.06
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Presentations 【 display / non-display 】

  • 十分に調査されているけど知られていない癌と運動の深い関係

    澤田 亨  [Invited]

    早稲田教育学院：早稲田の授業を知ろう  (早稲田大学（東京都新宿区）)  早稲田祭2019運営スタッフ

    Presentation date： 2019.11

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  • 健康長寿の秘訣と秘策

    澤田 亨  [Invited]

    早稲田教育学院：早稲田の授業を知ろう  (早稲田大学（東京都新宿区）)  早稲田祭2019運営スタッフ

    Presentation date： 2019.11

  • 健康長寿を目指した食生活習慣・運動習慣

    澤田 亨  [Invited]

    政経文化セミナー  (ホテルニューオータニ博多（福岡県福岡市）)  翔洋会

    Presentation date： 2019.10

  • 健康増進施設における運動指導の標準プログラム開発

    第38回日本臨床運動療法学会  (新潟大学)  日本臨床運動療法学会

    Presentation date： 2019.09

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Specific Research 【 display / non-display 】

  • 1964年東京オリンピック出場選手の体力と健康の関係を明らかにする長期追跡研究

    2019   長阪 裕子, 樋口 満, 岡 浩一朗, 坂本 静男, 岡田 純一, 川上 諒子, 青野 博, 石塚 創也, 山田 早智子, 蒲原 一之, 川原 貴

    　View Summary

    　オリンピックに参加したトップレベルのスポーツ選手においてもオリンピック参加後の競技生活からの引退や練習量の低下など環境の変化に伴う体重の変化が非感染性疾患罹患率に影響を及ぼす可能性がある。そこで本研究は、1964年東京オリンピック参加選手を対象に、オリンピック参加時の体重と、オリンピック参加後8年もしくは12年後の体重を比較し、体重の変化量別に2016年まで追跡した追跡期間中の高血圧および糖尿病罹患率の関係を評価した。その結果、オリンピック参加後に体重が増える割合が大きかった選手ほど高血圧および糖尿病罹患の危険度が高い値を示すことが確認された。

  • 身体活動不足が尿路結石症発症の危険因子かを明らかにする後ろ向き大規模コホート研究

    2018   丸藤祐子, 川上諒子, 田代稔, I-Min Lee, Steven N. Blair, 宮地元彦, 曽根博仁, 加藤公則

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    【目的】身体活動不足が尿路結石症発症の危険因子かどうかを明らかにするためにコホート研究を実施した。【方法】研究参加者は男性16,458人、女性7,140人であった。研究参加者を余暇時の身体活動時間で3群に、歩行業務時間で2群に分類して5年間追跡した。追跡期間中における尿路結石症発症の有無を問診票で把握した。【結果】追跡期間中169人が尿路結石症を発症した。余暇身体活動時間や歩行業務時間は尿路結石症発症率と負の関係が観察された。【結論】余暇身体活動時間と歩行業務時間を組み合わせると尿路結石症発症率とより強く関係していた。【発表】第66回米国スポーツ医学会および第56回日本人間ドック学会にて発表した。

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Syllabus 【 display / non-display 】

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Teaching Experience 【 display / non-display 】

  • スポーツ疫学・生物統計学特論

    早稲田大学  

    2018.04
    -
    Now
     

  • Sports epidemiology

    Waseda University  

    2018.04
    -
    Now
     

  • Basic statistics

    Waseda University  

    2018.04
    -
    Now
     

  • Public health

    Waseda University  

    2018.04
    -
    Now
     

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Committee Memberships 【 display / non-display 】

  • 2014.04
    -
    2020.03

    日本健康支援学会  編集委員

  • 2019.05
    -
    　

    中央労働災害防止協会  労働者のストレス反応低減のための生活習慣等に関する検討委員会委員

  • 2015.11
    -
    2018.10

    東京商工会議所  健康づくり・スポーツ振興委員会 職域における運動習慣の定着化等に関する専門委員会委員

  • 2018.09
    -
    　

    厚生労働省  e-ヘルスネット情報評価委員

  • 2018.08
    -
    　

    埼玉県  埼玉県健康長寿計画推進検討会議委員

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