YYYasuyuki Yamada

Yasuyuki Yamada

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article


Yasuyuki Yamada has a total of 81 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Development of participatory intervention to improve safety and enjoyment in sports events based on Participatory Action-Oriented Training

    by Yasuyuki Yamada, Yuriko Takeuchi, Toyoki Nakao, Motoko Kai, Takuya Tanaka, Wei Guo, Sora Watabe, Saki Hosoi, Kazutaka Kogi, Toru Yoshikawa, et al.

    Introduction: Sports events are leisure activities that contribute to public well-being. To maximize their benefits, large-scale improvements and the continuous accumulation of small, low-cost, and immediately actionable improvements are needed. However, systematic approaches for the improvement of safety and enjoyment in sports events remain limited. Hence, this study developed and evaluated the Sports Event Improvement for Safe, Move, Info, Link, and Environment (SMILE) program based on Participatory Action-Oriented Training (PAOT). Methods: The SMILE program was developed using a research and development framework and evaluated through field research and questionnaire. Field research covered professional football, basketball, and rugby games in Japan. The program involved 294 participants in Day 1 fieldwork and 243 in Day 2 workshops. Output evaluation assessed good practices, improvement proposals based on the program design principle of balancing safety and enjoyment, club feedback, and participant satisfaction. Outcome evaluation examined pre–post changes in engagement with sports clubs, spectating, supporting, and participating in sports, and PAOT. Results: Participants collected 2,951 photographs of good practices and proposed 174 improvements. Output evaluation demonstrated high participant satisfaction and positive club feedback. Outcome evaluation showed significant pre–post increases in engagement with sports and PAOT. A 30-item action checklist based on photographs was developed to support the program. Discussion: The SMILE program was developed as a participatory approach to the sustained improvement of safety and enjoyment in sports events. It promotes the refinement and sharing of good practices, the accumulation of small, low-cost, and immediately actionable improvements, and value co-creation among stakeholders.

  • Open Access

    Effects of Food Preferences and Supplement Intake During Pregnancy on the Cleft Lip and Palate Incidence: The Japan Environment and Children’s Study

    by Kumiko Fujiwara, Hazuki Tamada, Hideto Imura, Taro Matsuki, Hiroo Furukawa, Nagato Natsume, Yasuyuki Yamada, Takeshi Ebara, Michihiro Kamijima, The Japan Environment and Children’s Study (JECS) Group

    Background: Cleft lip and/or palate (CL/P) is a high-frequency congenital disease. Besides genetic background, maternal environmental factors may be involved in its incidence. We examined the effects of unbalanced diets and the intake of dietary supplements during pregnancy on the incidence of non-syndromic CL/P (NSCLP) via a case–control study design with multiple case groups. The case group diagnosed with NSCLP included 281 patients, 217 from the Japan Environment and Children’s Study (JECS) data and 64 from the Aichi Gakuin University Hospital from 2011 to 2014. The control group comprised 87,477 (excluding cases with multiple births, chromosomal abnormalities, or complications) of the 104,062 fetal records registered in JECS. Results: The results revealed a significantly increased risk of NSCLP (aOR 2.86, 95% CI 1.63–5.00) in mothers who avoided two or more food items out of the investigated five, i.e., milk and dairy products, eggs, soy, fish, and beef. No association was identified in mothers who avoided one food. Conclusions: Providing nutritional support when multiple foods are avoided in daily food habits may be effective in reducing the occurrence of NSCLP.

  • Open Access

    Development of Scientific Communication in the Field of Human Factors and Ergonomics

    by Yasuyuki Yamada, Takeshi Ebara, Kyoko Oba, Naoto Shoji, Takashi Toriizuka, Ekou Yagi, Ryoji Yoshitake

    本総説は,日本人間工学会科学コミュニケーション研究部会における検討をもとに,科学コミュニケーションに対する人間工学的理解を整理し,今後の展望を示すことを目的とする.最初に,科学コミュニケーションの定義,動向,形態を概観し,科学コミュニケーションの類型に応じた人間工学領域の実践事例を紹介した.次に,リスクマネジメントにおける科学コミュニケーションの位置づけ,科学コミュニケーションを実施する際の留意点,参加者の人間特性に応じた人間工学的対応,科学コミュニケーターに求められるコンピテンシーについて論じた.さらに,今後の実践と研究に向けた課題を整理し,人間工学領域における科学コミュニケーションの方向性を提案した.本総説が,人間工学領域における科学コミュニケーションの共通理解の形成と,将来的な発展の基盤となることを期待する.

  • Open Access

    Correction: Ishihara et al. Association between Daily Physical Activity and Locomotive Syndrome in Community-Dwelling Japanese Older Adults: A Cross-Sectional Study. Int. J. Environ. Res. Public Health 2022, 19, 8164

    by Yoshihiko Ishihara, Hayao Ozaki, Takashi Nakagata, Toshinori Yoshihara, Toshiharu Natsume, Tomoharu Kitada, Masayoshi Ishibashi, Pengyu Deng, Yasuyuki Yamada, Hiroyuki Kobayashi, et al.

    There was an error in the “d-value of the first paragraph in Section 3 (Results)” in the original publication (Page 5, Line 41)


  • Open Access

    JS-14 Common Elements of Attractive Science Infographics

    by Sora Watabe, Takeshi Ebara, Mika Morishima, Motoki Mizuno, Yasuyuki Yamada

    The creation and dissemination of science infographics is a valuable approach to maximize the societal impact of scientific knowledge. Actually, the British Journal of Sports Medicine (BJSM) has established a submission category for infographics to effectively communicate insights in sports medicine. Therefore, this study aims to examine the common elements of excellent infographics by analyzing those published by the BJSM. In this study, a questionnaire survey was conducted with 62 Japanese university students, who evaluated and analyzed 151 infographics published by the BJSM from 2016 to 2022. Additionally, principal component analysis was performed using Python 3.10.12 to quantify the common elements. As the results of both of the human-based and computer-based analyses, this study confirmed the same seven elements as the previous GRAPHIC framework and two new elements: (1) get to know your audience (n= 3, 4.8%), (2) restrict colour (n=51, 82.3%), (3) align elements (n=33, 53.2%), (4) prioritise parts (n=12, 19.4%), (5) highlight the heading (n=15, 24.2%), (6) invest in imagery (n=45, 72.6%), (7) choose charts carefully (n=26, 41.9%), (8) adjust text volume and design (n=48, 77.4%), (9) attract with first impression (n=33, 53.2%). These elements are useful to design attractive infographics.

  • Open Access

    Association between Daily Physical Activity and Locomotive Syndrome in Community-Dwelling Japanese Older Adults: A Cross-Sectional Study

    by Yoshihiko Ishihara, Hayao Ozaki, Takashi Nakagata, Toshinori Yoshihara, Toshiharu Natsume, Tomoharu Kitada, Masayoshi Ishibashi, Pengyu Deng, Yasuyuki Yamada, Hiroyuki Kobayashi, et al.

    This study aimed to evaluate the association between locomotive syndrome (LS) and daily physical activity (PA) in community-dwelling older adults. This cross-sectional study included 80 healthy Japanese older adults (40 men and 40 women; age: 60–79 years). Habitual daily PA was evaluated using a triaxial wrist accelerometer. Participants were divided into two groups based on the results of the two-step test, stand-up test, and 25-question geriatric locomotive function scale. Binomial logistic regression analysis was conducted to examine the statistical relationships between daily PA and category of LS, adjusting for age from adjusted odds ratio (adjusted OR) with the 95 percent confidence intervals (95%CI) and bootstrap 95%CI. The mean step count and time spent on moderate to vigorous physical activity (MVPA) were significantly higher among non-LS participants than among LS participants in women, but not in men. Logistic regression analyses indicated that spending longer than 28 min/day on MVPA was significantly associated with a lower likelihood of LS relative to short time category under 28 min/day in women (adjusted OR = 0.12, 95%CI = 0.02–0.59, bootstrap 95%CI = 0.01–0.43), but not in men. This study suggests that in community-dwelling older women, those with higher MVPA had lower odds of LS, and daily MVPA was associated with LS, but not in men. Therefore, the associations between LS and daily physical activity were partly dependent on sex differences.


  • Practice of Disaster Prevention Education Utilizing the Strategies of Science Communication and Gamification:

    by Yasuyuki Yamada, Tsubasa Miyanaka, Motoko Kai, Motoki Mizuno, Youichi Yanagawa, Takeshi Ebara

    日本は自然災害の経験を通して,防災教育の良好事例を蓄積してきた.その中でも,ゲーミフィケーションを活用した防災教育の良好事例は,参加者のモチベーションと教育効果を高める上で有益である.そこで本研究では,防災教育を目的に使用する課題解決ゲームを作成し,科学コミュニケーションの枠組(AEIOU定義:発見,楽しみ,興味,意見形成,理解)から教育効果を検証した.本研究の対象者は大学生26名(男性12名,女性14名)とした.教育効果の検証には,SEC-AEIOUの項目を防災リテラシーの文脈に改変した項目を作成して使用した.t検定(対応あり)の結果,課題解決ゲームの実施後に発見,楽しみ,興味の得点が有意に向上した.さらに,災害に関する意見形成の変容が42.2%の参加者に見られた.その一方,理解の得点では有意差が認められなかった.本研究はゲーミフィケーションを活用したことで,防災リテラシーを高める新たなツールの作成に成功したといえる.課題解決ゲームの教育効果をさらに高めるためには,ゲーミフィケーションのさらなる活用,コンテンツの改良,ファシリテーションの改善が必要になると考えられる.


  • Open Access

    Relationship between Physical Activity and Physical and Mental Health Status in Pregnant Women: A Prospective Cohort Study of the Japan Environment and Children’s Study

    by Yasuyuki Yamada, Takeshi Ebara, Taro Matsuki, Hirohisa Kano, Hazuki Tamada, Sayaka Kato, Hirotaka Sato, Mayumi Sugiura-Ogasawara, Shinji Saitoh, Michihiro Kamijima, et al.

    To discuss appropriate physical activity (PA) levels during pregnancy, this prospective cohort study examined the relationships between PA levels before and during pregnancy and physical and mental health status. Fixed data for 104,102 pregnant women were used from the Japan Environment and Children’s Study, of which data for 82,919 women were analyzed after excluding women with multiple birth and pregnancy complications. PA levels were measured using the International Physical Activity Questionnaire-Short Form. The 8-Item Short Form Health Survey was used to measure outcomes. Logistic regression with multiple imputations showed that moderate PA for over 720 min/wk and vigorous PA before pregnancy were associated with poorer mental health in the first trimester (adjusted odds ratio (AOR): 1.087–1.376. Walking in the second and third trimesters was associated with better physical and mental health (AOR: 0.855–0.932). Moderate PA over 1080 min/wk and vigorous PA in the second and third trimesters were associated with poorer mental health (AOR: 1.223–1.873). Increases over 4135.4 MET–min/wk and decreases in PA levels were associated with poorer mental and physical health (AOR: 1.070–1.333). Namely, pregnant women receiving health benefits prefer continuous walking in addition to avoiding vigorous PA and excessive changes in PA levels during pregnancy.


  • Open Access

    Association between Prenatal Exposure to Household Pesticides and Neonatal Weight and Length Growth in the Japan Environment and Children’s Study

    by Taro Matsuki, Takeshi Ebara, Hazuki Tamada, Yuki Ito, Yasuyuki Yamada, Hirohisa Kano, Takahiro Kurihara, Hirotaka Sato, Sayaka Kato, Shinji Saitoh, et al.

    The effects of prenatal exposure to household pesticides on fetal and neonatal growth have not been fully clarified. The present study aims to determine the effects of prenatal exposure to pesticides on neonates’ body size and growth during the first month. This study included 93,718 pairs of pregnant women and their children from the Japan Environment and Children’s Study. Participants completed self-reporting questionnaires during their second or third trimesters on their demographic characteristics and frequency of pesticide use during pregnancy. Child weight, length, and sex were obtained from medical record transcripts. Birth weight and length, as well as weight and length changes over the first month, were estimated using an analysis of covariance. Frequency of exposure to almost all pesticides had no effects on birth weight and length. However, we found small but significant associations (i) between the use of fumigation insecticides and decreased birth weight, and (ii) between frequencies of exposure to pyrethroid pesticides, especially mosquito coils/mats, and suppression of neonatal length growth. Prenatal exposure to household pesticides, especially those containing pyrethroids, might adversely influence fetal and postnatal growth trajectories.