Research Interests 【 display / non-display 】

Research Interests 【 display / non-display 】

Graduating School 【 display / non-display 】

Graduating School 【 display / non-display 】

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  2008.03

  Kanagawa University of Human Services   Faculty of Health Care and Social Welfare   Graduated

Graduate School 【 display / non-display 】

Graduate School 【 display / non-display 】

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  2021.03

  Tohoku University  Graduate School, Division of Medicine  Master's Course  Completed

Campus Career 【 display / non-display 】

Campus Career 【 display / non-display 】

• 2021.12

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  Now

  Akita University   Graduate School of Medicine   Doctorial Course in Medicine   Public Health and Environmental Medicine   Department of Environmental health science and Public Health   Assistant Professor  

Research Areas 【 display / non-display 】

Research Areas 【 display / non-display 】

• Life Science / Gerontological nursing and community health nursing

• Life Science / Nutrition science and health science

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

• Life Science / Rehabilitation science

Qualification acquired 【 display / non-display 】

Qualification acquired 【 display / non-display 】

• Physiotherapist

Thesis for a degree 【 display / non-display 】

Thesis for a degree 【 display / non-display 】

• Association between the Number of Deliveries and Cognitive Impairment Considering the Presence of Subclinical Cerebrovascular Diseases: the Ohasama Study

  Teiichiro Yamazaki, Kyoko Nomura, 他 

  The Tohoku Journal of Experimental Medicine    2025.03  [Refereed]

  Domestic Co-author

  PubMed

Research Achievements 【 display / non-display 】

Research Achievements 【 display / non-display 】

◆Original paper【 display / non-display 】

To the head of this page.▲

◆Original paper【 display / non-display 】

An umbrella review of efficacy of digital health interventions for workers

Masahiro Iwakura, Chihiro Ozeki, Songee Jung, Teiichiro Yamazaki, Takako Miki, Michiko Nohara, Kyoko Nomura

npj Digital Medicine ( Springer Science and Business Media LLC )  8 ( 1 )   2025.04  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

How many truck drivers would have sleep disorders? : Investigation on lifestyle and stress on insomnia among Japanese male truck drivers

Ryoya Aoki, Takashi Miyachi, Yuta Sugano, Choichiro Kanke, Teiichiro Yamazaki, Kazuo Mishima, Kyoko Nomura

Journal of Occupational Health ( Oxford University Press (OUP) )  67 ( 1 )   2025.02  [Refereed]

Research paper (journal)   Domestic Co-author

Abstract

Objectives: This study aimed to investigate how many drivers would have sleep disorders and what factors would be most associated with chronic insomnia symptoms.

Methods: A cross-sectional study of 505 truck drivers in Akita prefecture was conducted using a self-administered questionnaire and health checkup data. We defined insomnia based on the International Classification of Sleep Disorders, 3rd edition (ICSD-3), sleep apnea syndrome (SAS) with a simple four-variable screening tool, and restless legs syndrome (RLS) with RLS/Willis-Ekbom disease diagnostic criteria. Investigated factors included sleep duration, driving characteristics, caffeine types (foods and beverage) and amounts, caffeine intake timing, state-trait anxiety inventory (STAI), individual stress, and other covariates.

Results: The prevalence of suspected SAS was 23.2% (n = 154), and that of RLS was 0.8% (n = 5). After excluding those, chronic insomnia symptoms were present in 36/505 drivers (7.1%). After adjusting for covariates, a logistic model demonstrated that drinking habits (Odds ratio, OR 6.21, 95% Confidence Interval, CI:1.07–35.8), caffeine intake before sleep (OR 2.65, 95% CI:1.09–6.45), sleep duration on days off (OR 1.44, 95% CI: 1.01–2.05), and STAI score (OR 12.8, 95% CI: 2.53–64.2) were significantly associated with chronic insomnia symptoms. STAI was significantly positively correlated with individual stress, such as family worries (r = 0.22), relationships with non-partners (r = 0.28), and health (r = 0.23).

Conclusions: Our study revealed that one fourth of male truck drivers had sleep disorders that require further medical evaluation. For male truck drivers, a lifestyle modification and stress relief may be a key to address insomnia.

DOI PubMed

Evaluation of the joint health promotion projects between an industry association and an insurer: verification of the effect on lifestyle improvement among association members using propensity score matching method.

  31 ( 1 ) 29 - 37   2024.03  [Refereed]

Research paper (journal)   Domestic Co-author

Association between the Number of Deliveries and Cognitive Impairment Considering the Presence of Subclinical Cerebrovascular Diseases: the Ohasama Study

Teiichiro Yamazaki, Kyoko Nomura, Michihiro Satoh, Azusa Hara, Megumi Tsubota-Utsugi, Takahisa Murakami, Kei Asayama, Yukako Tatsumi, Yuki Kobayashi, Takuo Hirose, Ryusuke Inoue, Tomoko Totsune, Masahiro Kikuya, Hirohito Metoki, Atsushi Hozawa, Yutaka Imai, Takayoshi Ohkubo

The Tohoku Journal of Experimental Medicine ( Tohoku University Medical Press )  advpub ( 0 )   2024  [Refereed]

Research paper (journal)   Domestic Co-author

DOI PubMed CiNii Research

Longitudinal survey of depressive symptoms among university students during the COVID-19 pandemic in Japan

Kyoko Nomura, Teiichiro Yamazaki, Eri Maeda, Junko Hirayama, Kyoichi Ono, Masahito Fushimi, Kazuo Mishima, Fumio Yamamoto

Frontiers in Psychology   13 ( 863300 )   2022.08  [Refereed]

Research paper (journal)  

DOI

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Academic Activity 【 display / non-display 】

Academic Activity 【 display / non-display 】

• 2025.09

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• 2024.04

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• 2023.05

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• 2023.05

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• 2021.09

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  Now