{"title":"The role of self-endangering work behavior in burnout among Japanese discretionary labor system workers in relation to workaholism and work engagement.","authors":"Sakurako Ishibashi, Kazuhito Yokoyama, Akinori Nakata, Yuto Kannari, Akiko Kameyama, Teruyo Saito","doi":"10.2486/indhealth.2025-0166","DOIUrl":"https://doi.org/10.2486/indhealth.2025-0166","url":null,"abstract":"<p><p>Burnout has become a major occupational health concern in Japan, particularly under flexible work arrangements that may intensify self-regulatory demands. This study aimed to clarify the effects of self-endangering work behavior (SEWB) and other work-related psycho-behavioral factors on burnout among Japanese workers. An Internet-based cross-sectional survey was conducted with 800 participants (four groups of 200 each): two groups engaged in professional and planning work under a discretionary labor system, and two comparable groups of non-discretionary workers. The discretionary labor system in Japan allows employees greater autonomy over working hours while evaluating performance based on deemed working time rather than actual hours worked. Among professional workers, burnout (emotional impairment), SEWB, workaholism, and work engagement were significantly higher in discretionary compared with non-discretionary workers. Multiple regression analyses showed burnout was positively associated with SEWB and workaholism in both professional groups. Among planning workers, SEWB and work engagement were higher in discretionary workers, whereas burnout did not differ significantly. Burnout was positively associated with workaholism in both groups and with SEWB only in non-discretionary workers. These findings suggest differential risks of burnout depending on occupational type and labor system.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147672793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Industrial HealthPub Date : 2026-04-10DOI: 10.2486/indhealth.2025-0226
Maaike VAN DER Rhee, Johanneke E Oosterman, Suzan Wopereis, Inês Chaves, Martijn E T Dollé, Alex Burdorf, Linda W M VAN Kerkhof, Heidi M Lammers-VAN DER Holst
{"title":"The impact of a personalized sleep & nutrition intervention in shift workers: improved subjective sleep without objective changes.","authors":"Maaike VAN DER Rhee, Johanneke E Oosterman, Suzan Wopereis, Inês Chaves, Martijn E T Dollé, Alex Burdorf, Linda W M VAN Kerkhof, Heidi M Lammers-VAN DER Holst","doi":"10.2486/indhealth.2025-0226","DOIUrl":"https://doi.org/10.2486/indhealth.2025-0226","url":null,"abstract":"<p><p>This study examined the effects of a personalized sleep or nutrition intervention on sleep in shift-workers. Fifty-seven healthy male workers on 12-hour shifts received the sleep intervention (n=25), nutrition intervention (n=22), or control (n=10). The sleep intervention aimed to improve sleep duration and quality through adjustments in sleep timing and sleep education. The nutrition intervention targeted circadian alignment by structuring meal timing and macronutrient distribution. Interventions were personalized using baseline sleep, diet, and physiological markers. Subjective sleep was assessed with the Insomnia Severity Index at baseline, last weeks of the intervention, and 8-month follow-up. Objective sleep outcomes (total sleep time, sleep efficiency, fragmentation index, and wake after sleep onset) were assessed through actigraphy at baseline, first and last weeks of the intervention. Mixed-effects models analyzed changes in subjective and objective sleep outcomes, adjusting for age, chronotype and household composition. The sleep intervention group had significantly higher insomnia scores at baseline, which improved to control levels post-intervention and remained so at follow-up. However, no significant changes in objective sleep were observed. The nutrition intervention group showed no significant effects on subjective or objective sleep outcomes. These findings suggest personalized sleep strategies may improve perceived sleep without detectable changes in objective measures.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147672801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reply to letter to the editor from Dr. Jiayi Chen.","authors":"Yuki Takahashi, Yoko Suzuki, Natsumi Matsunari, Toru Yoshikawa, Kenji Yamamoto, Masaya Takahashi","doi":"10.2486/indhealth.2026-0070","DOIUrl":"https://doi.org/10.2486/indhealth.2026-0070","url":null,"abstract":"","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147638722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Industrial HealthPub Date : 2026-04-07DOI: 10.2486/indhealth.2026-0046
Jiayi Chen
{"title":"The letter to editor regarding \"Characteristics of mental disorders among physicians in 31 compensated cases in Japan\".","authors":"Jiayi Chen","doi":"10.2486/indhealth.2026-0046","DOIUrl":"https://doi.org/10.2486/indhealth.2026-0046","url":null,"abstract":"","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147638714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Industrial HealthPub Date : 2026-03-25DOI: 10.2486/indhealth.2025-0181
Tomokazu Tajima, Ai Ikeda, Hirofumi Goto, Jun Shigemura, Takeshi Tanigawa
{"title":"Long-term effects of radiation exposure on mental health symptoms and concern among Fukushima nuclear plant workers: The Fukushima NEWS Project Study.","authors":"Tomokazu Tajima, Ai Ikeda, Hirofumi Goto, Jun Shigemura, Takeshi Tanigawa","doi":"10.2486/indhealth.2025-0181","DOIUrl":"https://doi.org/10.2486/indhealth.2025-0181","url":null,"abstract":"<p><p>The Fukushima nuclear power plant workers suffered tremendous stress due to the accident, and a part of them were exposed to high levels of radiation. This study included 1,157 workers and level of radiation exposure was assessed in 2012, one year after the disaster. Mental health symptoms (post-traumatic stress response [PTSR] and general psychological distress [GPD]) and three types of concern (work, life, or health-related) were assessed annually from 2012 to 2014. The relationships between high radiation exposure (≥50 millisievert [mSv]) and mental health symptoms and concern over time were analyzed using mixed-effects longitudinal beta regression and logistic regression models. A total of 352 workers were exposed to 50 mSv radiation or more (30.4%). None of the changes over time in PTSR and GPD were significantly affected by high radiation exposure. Scores for job- or life-related concern were also not significantly affected. Only scores for health-related concern were significantly elevated by high radiation exposure in 2012 (β=4.49, p=0.03), and the impact continued until 2014. Neither PTSR nor GPD was elevated by high radiation exposure among the workers. However, the workers with high radiation exposure continued to worry about their health in later years.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147511943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Industrial HealthPub Date : 2026-03-16DOI: 10.2486/indhealth.2025-0041
Nianzhi Tu, Zixin Cui, Sungju Maeng, Makoto Itoh
{"title":"Effects of meditation or walking as a microbreak on fatigue recovery during simulated air traffic control tasks.","authors":"Nianzhi Tu, Zixin Cui, Sungju Maeng, Makoto Itoh","doi":"10.2486/indhealth.2025-0041","DOIUrl":"https://doi.org/10.2486/indhealth.2025-0041","url":null,"abstract":"<p><p>Air traffic control (ATC) is a demanding domain characterized by intense operational demands, including high workload and task complexity that act as significant contributors to operator fatigue alongside other physiological and psychological factors. This study investigates the effects of different types of microbreak interventions on post-task fatigue recovery among air traffic controllers (ATCOs). Using a simplified simulated ATC task, we recruited ATC-naïve participants to evaluate two types of microbreaks-meditation and walking-as well as a control condition without microbreaks. We recorded participants' self-perceived fatigue, eye movements, heart rate variability (HRV), critical flicker fusion (CFF), heart rate, blood pressure, and performance metrics during the simulated task. The results indicate that taking a microbreak is effective in promoting subjective fatigue recovery. Furthermore, microbreaks had a significant effect on the preservation of task performance, with their effectiveness differing across microbreak types. The walking microbreak was particularly in reducing operational errors, whereas the meditation microbreak showed a non-significant trend toward mitigating declines in reaction time. The findings suggest that both microbreak types are beneficial for fatigue recovery, but walking microbreaks may confer additional benefits for sustaining operational performance.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147463277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Industrial HealthPub Date : 2026-03-13Epub Date: 2025-08-06DOI: 10.2486/indhealth.2025-0020
Basilua Andre Muzembo, Chisato Hayashi, Kei Kitahara
{"title":"Poor preparedness of congolese healthcare workers for Ebola during the 10th outbreak (2018-2020).","authors":"Basilua Andre Muzembo, Chisato Hayashi, Kei Kitahara","doi":"10.2486/indhealth.2025-0020","DOIUrl":"10.2486/indhealth.2025-0020","url":null,"abstract":"<p><p>We conducted a hospital-based survey among frontline healthcare workers (HCWs) in Kinshasa, Democratic Republic of Congo (DRC) during the peak of the 2018-2019 Ebola outbreak. This study aimed to assess HCWs' knowledge, preparedness, and practices regarding the management of suspected Ebola cases, considering the challenges faced by hospitals in Kinshasa. A total of 290 HCWs from 72 healthcare facilities participated in the study (response rate: 83.0%). While all HCWs were aware of Ebola, significant knowledge gaps were identified, particularly regarding transmission routes and clinical symptoms. Only 16% of the participants had received formal Ebola training, and those who received training reported greater confidence in managing suspected cases. Notably, only 28% of HCWs were aware that Ebola could be transmitted through traditional funeral ceremonies and 34% were aware of transmission through contact with contaminated clothing. Adherence to standard precautions, such as hand hygiene (72%) and glove use (63%), was suboptimal, and 47% of the healthcare facilities lacked designated triage areas. These findings emphasize the need for targeted training, better adherence to precautions, and reinforced healthcare infrastructure. Addressing knowledge gaps, especially regarding transmission through funeral practices and contaminated clothing, and enhancing frontline HCWs' preparedness are crucial for improving responses to future Ebola outbreaks and other emerging infectious diseases.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"202-210"},"PeriodicalIF":1.6,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12989273/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144794338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Industrial HealthPub Date : 2026-03-13Epub Date: 2025-01-27DOI: 10.2486/indhealth.2024-0170
Jun Fai Yap, Rama Krishna Supramanian, Yin Cheng Lim
{"title":"Occupational management of low back pain secondary to prolapsed intervertebral disc in a Malaysian healthcare worker: a case report emphasizing ergonomic intervention and risk reduction strategies.","authors":"Jun Fai Yap, Rama Krishna Supramanian, Yin Cheng Lim","doi":"10.2486/indhealth.2024-0170","DOIUrl":"10.2486/indhealth.2024-0170","url":null,"abstract":"<p><p>Low back pain (LBP) is a commonly encountered medical disorder in Malaysia's primary care setting, though establishing a direct connection between LBP and the workplace environment in adults is challenging. This case presents a clinic nurse who developed LBP due to a prolapsed intervertebral disc and her clinical management from an Occupational Health Doctor perspective. Her occupational management involved a walk-through survey at an urban hospital, which identified bone marrow aspiration as her most physically demanding task. Detailed assessment revealed that during this procedure, the nurse maintained awkward postures and performed repetitive movements while standing for extended periods. A Rapid Entire Body Assessment score of 4 suggested a medium risk, meriting further investigation. To accommodate her condition, the nurse was placed on light duty, with job modifications recommended to limit standing to no more than four hours and to avoid lifting objects exceeding five kilograms. Although the criteria for an occupational disease are not met, it is classified as a work-aggravated condition, given that her LBP was likely worsened by her daily work activities. In conclusion, effective management of occupational LBP requires thorough risk assessments. Modifying tasks and supervisor intervention are essential when job duties could exacerbate pre-existing LBP.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"187-193"},"PeriodicalIF":1.6,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12989268/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143046369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influencing factors of clinical belonging among Chinese nurses in training.","authors":"Qing Ou, Pei Tong, Shengying Shi, Xuehua Li, Yucheng Li, Dan He, Hongyun Wei","doi":"10.2486/indhealth.2025-0050","DOIUrl":"10.2486/indhealth.2025-0050","url":null,"abstract":"<p><p>This study evaluates the sense of belonging and its determinants among standardized training nurses in China. A survey of 133 nurses was conducted using convenience sampling, incorporating the Belongingness Scale-Clinical Placement Experience, Turnover Intention Scale, and Self-Rating Anxiety Scale. Data were analyzed with t-tests, ANOVA, Pearson correlation, and multiple linear regression. The average belongingness score was 3.47 ± 0.43, indicating moderate levels. Alarmingly, 94.0% reported high turnover intentions, and 42.9% experienced anxiety. Significant variations in belongingness were linked to health status, work stress, colleague relationships, preceptor satisfaction, and training benefits (p<0.05). Negative correlations were found between belongingness and turnover intention (rs=-0.195, p<0.05) and anxiety (rs=-0.412, p<0.01). Moderate belonging levels were observed, with recommendations for enhanced preceptorship and psychological support.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"130-136"},"PeriodicalIF":1.6,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12989271/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144821287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The association between workplace telework guidance, self-management behaviors, and health outcomes among teleworkers: a cross-sectional study in collaboration with labor union.","authors":"Junko Tanaka, Takashi Shimazaki, Takashi Yamauchi, Yumiko Shimizu, Junko Shimasawa, Machi Suka","doi":"10.2486/indhealth.2025-0012","DOIUrl":"10.2486/indhealth.2025-0012","url":null,"abstract":"<p><p>This study examined the associations between workplace telework guidance, self-management behaviors, and health outcomes-specifically ocular and musculoskeletal symptoms and subjective health perception-among Japanese teleworkers in the post-COVID-19 era. A web-based cross-sectional survey was conducted between October and November 2023, targeting full-time employees in Japan who began teleworking after January 2020. Participants were recruited in collaboration with the Tokyo Federation of the Japan Trade Union Confederation (RENGO Tokyo), a major labor organization representing a wide range of industries. Health status was assessed based on the presence of ocular and musculoskeletal symptoms and subjective health perception, measured using an item from the Comprehensive Survey of Living Conditions by Japan's Ministry of Health, Labour and Welfare. Among 1,666 valid responses, 48.1% of participants reported receiving telework-related guidance from their workplaces. Those who received guidance were more likely to engage in self-management behaviors, such as taking adequate breaks and obtaining sufficient sleep, which were significantly associated with better health outcomes. These findings underscore the importance of workplace guidance in promoting self-management practices and reducing health risks in telework environments, highlighting the necessity of implementing evidence-based occupational health strategies.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"173-186"},"PeriodicalIF":1.6,"publicationDate":"2026-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12989269/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145075225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}