Kyan Akira

写真a

Title

Associate Professor
To the head of this page.▲

Current Affiliation Organization 【 display / non-display 】

  • Duty   University of the Ryukyus   Faculty of Medicine   Health Sciences   Associate Professor  

To the head of this page.▲

University 【 display / non-display 】

  • 2010.04
    -
    2014.03

    University of the Ryukyus   Education   Health and Physical Education   Graduated

To the head of this page.▲

Graduate School 【 display / non-display 】

  • 2016.04
    -
    2019.03

    University of the Ryukyus  Graduate School of Health Sciences  Doctor's Course (second term)  Completed

To the head of this page.▲

External Career 【 display / non-display 】

  • 2016.04
    -
    2020.10

    Okinawa Christian University  

  • 2019.04
    -
    2021.03

    Gifu Women's University  

  • 2019.04
    -
    2021.03

    Okinawa Women's Junior College  

  • 2019.04
    -
    2023.10

    University of the Ryukyus  

  • 2019.10
    -
    2021.03

     

display all >>

To the head of this page.▲

Affiliated academic organizations 【 display / non-display 】

  • 　
    　
    　
     

    The Japanese Society of Physical Fitness and Sports Medicine 

  • 　
    　
    　
     

    JAPANESE ASSOCIATION OF EXERCISE EPIDEMIOLOGY 

  • 　
    　
    　
     

    THE ASSOCIATION OF JAPANESE CLINICAL DOHSALOGY 

  • 　
    　
    　
     

    JAPAN SOCIETY OF HUMAN GROWTH AND DEVELOPMENT 

  • 　
    　
    　
     

    THE JAPANESE ASSOCIATION OF SCHOOL HEALTH 

display all >>

To the head of this page.▲

Research Interests 【 display / non-display 】

  • 学校保健、社会疫学、ヘルスプロモーション

  • 運動; 体育; スポーツ; 身体活動; 座位行動; 睡眠; ソーシャルジェットラグ; 24-hr movement behavior; 健康教育; 学校教育; 社会経済状態; 格差; ソーシャルキャピタル; 体力; 運動能力; 健康; 発育発達; 学力; 認知機能; 幸福; ウェルビーイング

To the head of this page.▲

Research Areas 【 display / non-display 】

  • Life Science / Hygiene and public health (non-laboratory)

  • Life Science / Nutrition science and health science

  • Humanities & Social Sciences / Childhood and nursery/pre-school education

  • Life Science / Physical education, and physical and health education

  • Life Science / Sports sciences

To the head of this page.▲

Published Papers 【 display / non-display 】

  • Who is a young person who would accept walking only up to 10 minutes distance? : A cross-sectional study

    Yoshito Kamiya, Akira Kyan, Minoru Takakura

      25 ( 1 ) Accepted   2023.06 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

  • Impact of the COVID-19 Pandemic on the Socioeconomic Inequality of Health Behavior Among Japanese Adolescents: A 2-Year Repeated Cross-Sectional Survey

    Akira Kyan, Minoru Takakura

    Journal of Physical Activity and Health ( Human Kinetics )  20 ( 6 ) 538 - 546   2023.04 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    　View Summary

    Background: Although disparities in socioeconomic status in health behaviors have been highlighted globally, they are not well understood in Japanese adolescents. The purpose of this study was to clarify the changes in socioeconomic disparities in adolescents' fundamental health behaviors, such as physical activity, screen time (ST), sleep, breakfast intake, and bowel movement before and during COVID-19. Methods: This was a repeated cross-sectional study which used data from the 2019 and 2021 National Sports-Life Survey of Children and Young in Japan. Data of 766 and 725 participants in 2019 and 2021, respectively, were analyzed. Favorable health behaviors were defined as daily moderate to vigorous physical activity (MVPA) of at least 60 minutes, ST of less than 2 hours, sleep of 8 to 10 hours, daily breakfast intake, and bowel movement frequency of at least once in every 3 days. We calculated the slope index of inequality and relative index of inequality in each health behavior for equivalent household income levels for assessing absolute and relative economic inequalities. Results: Compliance with MVPA and ST recommendation significantly declined from 20.1% and 23.0% in 2019 to 11.7% and 14.9% in 2021, respectively. The slope index of inequality and relative index of inequality increased in MVPA for income levels, but decreased in daily breakfast in 2019 to 2021. Although the widening and narrowing of the disparity were inconclusive for ST, it exacerbated for the higher-income groups. Conclusions: Our study revealed widening of economic disparities in the achievement of recommended MVPA and narrowing of it in breakfast intake among adolescents before and during COVID-19.

    • Access this article
      DOI
    • Search related information
      PubMed

  • Questionnaire-assessed physical activity among elementary and junior high schoolers in Okinawa

    Akira Kyan, Masaya Miyagi, Minoru Takakura

    Research in Exercise Epidemiology   (accepted)   2023

    Type of publication: Research paper (scientific journal)

  • Changes in the prevalence of health-risk behaviors among Japanese adolescents before and during the COVID-19 pandemic: 2002-2021

    Minoru Takakura, Masaya Miyagi, Akira Kyan

    School Health ( 一般社団法人 日本学校保健学会 )  19 ( 0 ) 14 - 25   2023 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    　View Summary

    <p><b>Background: </b>Although many health-risk behaviors among adolescents have improved in the past several decades, the coronavirus disease 2019 (COVID-19) pandemic might have a significant impact on adolescent health and health-risk behaviors.</p><p><b>Objective: </b>This study aimed to explore trends in the prevalence of health-risk behaviors among Japanese adolescents between 2002 and 2021 and to assess whether the COVID-19 pandemic period is associated with those changes.</p><p><b>Methods: </b>A repeated cross-sectional study was conducted using data from prefecture-wide surveys of public high schools in Okinawa Prefecture, Japan, in 2002, 2005, 2008, 2012, 2016, and 2021. The study included 16,562 students in grades 10 to 12 (15-18 years). The behaviors studied included injury-related behaviors, cigarette use, alcohol use, sexual behaviors, dietary behaviors, and physical activity. Logistic regression models were performed separately for boys and girls, treating the survey year as a continuous independent variable and adjusting for grade, school type and region.</p><p><b>Results: </b>During the 20-year period, there were significant improvements in multiple health-risk behaviors, such as traffic risk behaviors, cigarette and alcohol use, vegetable intake, TV watching, and sexual behaviors. On the other hand, persistent sad feelings, suicidal ideation and fasting in girls, fruit consumption and physical activity in boys, and video game/computer use among both sexes have worsened over time. In particular, during the COVID-19 pandemic, physical activity and video game/ computer use in both sexes and persistent sad feelings and suicidal ideation in girls worsened significantly.</p><p><b>Conclusion: </b>Many health-risk behaviors among adolescents improved between 2002 and 2021. Meanwhile, the COVID-19 pandemic might contribute to deteriorated physical activity and video game/ computer use and worsened mental health and suicidality among girls.</p>

  • Associations between 24-h movement behaviors and self-rated health: a representative sample of school-aged children and adolescents in Okinawa, Japan

    Akira Kyan, Minoru Takakura, Masaya Miyagi

    Public Health ( Elsevier BV )  213   117 - 123   2022.12 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    • Access this article
      DOI
    • Search related information
      PubMed

display all >>

To the head of this page.▲

Presentations 【 display / non-display 】

display all >>

To the head of this page.▲

Academic Awards 【 display / non-display 】

  • Encouragement Award

    2023.01   Japanese Society of Health Education and Promotion  

  • Encouragement Award

    2022.05   Japan Society of Physical Fitness and Sports Medicine   Validity of Japanese version of a two-item 60-minute moderate-to-vigorous physical activity screening tool for compliance with WHO physical activity recommendations

    Winner: Kyan Akira, Tanaka Shigeho, Takakura Minoru, Olds Timothy, Schranz Natasha, Tanaka Chiaki

  • Presentation Award

    2021.09   Japanese Society of Health Education and Promotion  

    Winner: Yoshito Kamiya, Akira Kyan, Noboru Kinjo, Tadashi Nakasone, Minoru Takakura

To the head of this page.▲

Grant-in-Aid for Scientific Research 【 display / non-display 】

  • Temporal trends in social determinants of health among young people

    Grant-in-Aid for Scientific Research(C)

    Project Year: 2024.04  -  2027.03 

    Investigator(s): Takakura M, Kyan A, Miyagi M 

    Direct: 3,600,000 (YEN)  Overheads: 4,680,000 (YEN)  Total: 1,080,000 (YEN)

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2024.04  -  2027.03 

    Direct: 3,500,000 (YEN)  Overheads: 4,550,000 (YEN)  Total: 1,050,000 (YEN)

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2024.04  -  2027.03 

    Direct: 3,500,000 (YEN)  Overheads: 4,550,000 (YEN)  Total: 1,050,000 (YEN)

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2023.04  -  2027.03 

    Direct: 14,300,000 (YEN)  Overheads: 18,590,000 (YEN)  Total: 4,290,000 (YEN)

  • Grant-in-Aid for Scientific Research(B)

    Project Year: 2023.04  -  2027.03 

    Direct: 14,300,000 (YEN)  Overheads: 18,590,000 (YEN)  Total: 4,290,000 (YEN)

display all >>

To the head of this page.▲

SDGs 【 display / non-display 】

  • WHOが提唱するヘルスプロモーティングスクールの促進

To the head of this page.▲

Social Activity 【 display / non-display 】

display all >>

To the head of this page.▲

Media Coverage 【 display / non-display 】

To the head of this page.▲