Industrial Health
Online ISSN : 1880-8026
Print ISSN : 0019-8366
ISSN-L : 0019-8366
Volume 60, Issue 6
Displaying 1-10 of 10 articles from this issue
Editorial
Review Article
  • Georgia A. TUCKWELL, Grace E. VINCENT, Charlotte C. GUPTA, Sally A. FE ...
    2022 Volume 60 Issue 6 Pages 501-513
    Published: January 28, 2022
    Released on J-STAGE: December 01, 2022
    Advance online publication: January 28, 2022
    JOURNAL FREE ACCESS

    Sedentary behavior at work contributes to detrimental cognitive outcomes (e.g., decreases in attention). The length of time that cognitive performance benefits are sustained following bouts of breaking up sitting (e.g., using sit-stand desks or walking) is not known. A narrative review of the literature was conducted using a systematic search strategy, with keywords related to breaking up sitting interventions in office-based environments and cognitive performance outcomes in the period immediately post the cessation of the breaking up sitting intervention. Three types of office-based breaking up sitting interventions were identified; 1) sit-stand desks, 2) walking desks and 3) cycling desks. From the eight studies which met the criteria, the impacts of these interventions on cognitive performance outcomes were mixed, with significant benefits in some studies and others reporting no benefit. Of the cognitive domains assessed, working memory, attention, and psychomotor function showed significant sustained improvement for up to 30 minutes post intervention. While there are benefits to a key set of cognitive performance domains following breaking up sitting interventions in office-based settings, no studies have evaluated whether benefits to cognitive performance persist for longer than 30 minutes after the breaking up sitting intervention. Furthermore, specific applications of these cognitive benefits to tasks outside of work (e.g., driving home from work) are unknown.

    Download PDF (1440K)
Original Articles
  • Pei-Lun HSIEH, Ya-Chen LEE, Shang-Yu YANG, Ying-Lien LIN, Yu-Ru HUANG
    2022 Volume 60 Issue 6 Pages 514-524
    Published: November 24, 2021
    Released on J-STAGE: December 01, 2022
    Advance online publication: November 24, 2021
    JOURNAL FREE ACCESS

    In Taiwan, over 80% of home caregivers have experienced musculoskeletal disorders (MSD) in the past year. Although MSDs in health care workers have been discussed in existing literature (e.g., in nursing staff), there is limited understanding of the association between MSD and the work content of home caregivers. This study aimed to investigate the correlation between the work content and MSD of home caregivers. This cross-sectional study was conducted in long-term care units in central Taiwan. A structured questionnaire was used to collect data, including basic information, work content survey, and information from the Nordic Musculoskeletal Questionnaire. Logistic regression analysis was used to examine the association between work content and MSD. A total of 149 home caregivers with a mean age of approximately 50.97 ± 9.80 years were recruited for the study. The frequency of transfer of toilet and wheelchair was significantly associated with shoulder discomfort, upper back discomfort, and wrists/hands discomfort. In addition, the frequency of passive range of motion exercise was significantly associated with elbows discomfort. The results of this study indicated that the highest risk factor for MSD was transfer of toilet and wheelchair followed by passive range of motion exercise.

    Download PDF (1325K)
  • Vitória B. SIQUEIRA, Fernando M. CARVALHO
    2022 Volume 60 Issue 6 Pages 525-534
    Published: December 06, 2021
    Released on J-STAGE: December 01, 2022
    Advance online publication: December 06, 2021
    JOURNAL FREE ACCESS

    The scientific literature about presenteeism among farm workers is scarce. This study estimated the prevalence of and factors associated with presenteeism among paid fruit farm workers. A cross-sectional study investigated 340 paid employees of both sexes, aged 18 years or above, who worked during the 2019 irrigated fruit harvest in the municipality of Petrolina, Northeast Brazil. Information about sociodemographic characteristics, lifestyle, general health status, occupational characteristics, interpersonal work aspects, and the work environment’s structural characteristics was collected in a structured questionnaire. Presenteeism was established when participants reported working one or more days during the previous season despite feeling ill or when injured. Cox regression was used to estimate prevalence ratios adjusted by sex, area of residence (urban or rural), employment contract (permanent or seasonal), satisfaction with management, participation in workplace decision-making, availability of on-site healthcare facilities, and on-site availability of sunscreen. The prevalence of presenteeism during the previous season was high: 58.2%. In the final multivariate model, the adjusted prevalence ratio was higher (≥1.20) among female workers (1.42), workers dissatisfied with management (1.28), and those for whom sunscreen was not available on site (1.61). The prevalence of presenteeism was high and associated with personal, work organizational, and workplace resources characteristics.

    Download PDF (1510K)
  • Hiroki IKEDA, Xinxin LIU, Fuyuki OYAMA, Takahide AKAMA, Shuhei IZAWA, ...
    2022 Volume 60 Issue 6 Pages 535-547
    Published: January 21, 2022
    Released on J-STAGE: December 01, 2022
    Advance online publication: January 21, 2022
    JOURNAL FREE ACCESS

    This study examined the effects of short sleep duration (SSD) on hemodynamic and psychological responses under long working hours (LWH) in a laboratory experiment. Sixteen subjects participated in a crossover design experiment consisting of two conditions: normal (7-hours) sleep and short (5-hours) sleep. In each condition, participants engaged in simulated LWH (13 hours a day), comprising 12 task sessions. Hemodynamic and psychological responses were measured in each session. Results showed that there were significant main effects of condition and session but no interaction for hemodynamic and psychological responses. Systolic blood pressure and fatigue were higher in the later sessions than the first one. Stroke volume, sleepiness, fatigue, and stress were higher in the 5-hour than the 7-hour sleep condition (all p<0.05). These results suggest that although the combined effect of LWH and SSD was not significant, both LWH and SSD caused a hemodynamic and psychological burden.

    Download PDF (2381K)
  • Christine BINDER-MENDL, Cem EKMEKCIOGLU, Wolfgang MARKTL, Thorsten SCH ...
    2022 Volume 60 Issue 6 Pages 548-558
    Published: January 29, 2022
    Released on J-STAGE: December 01, 2022
    Advance online publication: January 28, 2022
    JOURNAL FREE ACCESS

    Previous studies have shown that shift workers are more prone to non-communicable diseases. The aim of the present crossover study is to investigate whether it is possible to improve the health status of shift workers. Nineteen male shift workers (38.5 years ± 7.4) received every other month a dietary counseling for one year. All subjects kept a seven-day diet diary during a night shift, received bioelectrical impedance analysis, and a laboratory examination was performed at the beginning of the study, after one year and at the end of the study. The laboratory blood test included the main metabolic parameters, melatonin and serotonin. Beside subjects were also motivated to incorporate more physical training into their daily routine. After the intervention period, participants reduced energy intake, mean portion size, table salt, consumption of sugar and saturated fat. C-reactive protein (CRP), mean corpuscular volume (MCV), liver enzymes, triglycerides, and uric acid decreased, while melatonin level increased. Participants lost body weight and reduced waist circumference after the intervention. Lifestyle modification and dietary information could contribute to the health of shift workers. However, further studies are needed to investigate whether this can prevent disease and whether melatonin production can be influenced by diet.

    Download PDF (1248K)
  • Päivi VANTTOLA, Mikko HÄRMÄ, Christer HUBLIN, Katriina VIITASALO, Mika ...
    2022 Volume 60 Issue 6 Pages 559-566
    Published: February 15, 2022
    Released on J-STAGE: December 01, 2022
    Advance online publication: February 15, 2022
    JOURNAL FREE ACCESS

    In shift work disorder (SWD), disturbed sleep acutely impairs employees’ recovery, but little attention has been paid to sleep during longer recovery periods. We examined how holidays affect self-estimated sleep length, sleep debt, and recovery in cases of SWD. Twenty-one shift workers with questionnaire-based SWD and nine reference cases without SWD symptoms completed a questionnaire on recovery and sleep need. They also reported sleep length on two separate occasions: during a work period and after ≥ 2 weeks of holidays. Sleep debt was calculated by subtracting sleep length from sleep need. We used parametric tests to compare the groups and the periods. The groups reported shorter sleep on workdays than during holidays (median difference: SWD group 1.7 h, p<0.001; reference group 1.5 h; p<0.05). The SWD group’s self-estimated sleep during holidays increased less above the sleep need (median 0.0 h) than the reference group’s sleep (1.0 h, p<0.05). In addition, the SWD group reported good recovery from irregular working hours less often (14%) than the reference group (100%, p<0.001). Although holidays were generally associated with longer sleep estimates than workdays, employees with SWD experienced consistently less efficient recovery than those without SWD.

    Download PDF (1488K)
  • Alice MCENTEE, Ann ROCHE, Susan KIM
    2022 Volume 60 Issue 6 Pages 567-577
    Published: February 15, 2022
    Released on J-STAGE: December 01, 2022
    Advance online publication: February 15, 2022
    JOURNAL FREE ACCESS

    Australian’s cocaine use is at record levels. Large increases occurred between 2016–2019, with significant increases predominately found among employed Australians. Patterns, and prevalence of workers’ cocaine use were examined using the 2016 and 2019 National Drug Strategy Household Survey data via frequency analyses. Logistic regression modelling identified predictors of employed Australian’s: cocaine use (2019); and increased use over time (2016–2019). Workers’ cocaine use increased 63% between 2016–2019 (3.8%–6.2%). Predictors of use, and increased use, were age, marital status, state, remoteness, smoking status, alcohol use, and cocaine approval level. Income and psychological distress predicted cocaine use in 2019 only. Highest prevalence in 2019 occurred among workers who approved of regular cocaine use (47.9%), currently smoked (14.9%), were very highly distressed (14.0%), risky alcohol consumers (13.7%), and aged 18–24 years (13.9%). Numerous individual-level characteristics influence workers’ cocaine use. Workplace cultural norms and substance use climates may facilitate increased cocaine use. The workplace is a powerful setting for cocaine prevention and intervention efforts. Potential strategies include targeting social norms, shifting positive drug use workplace cultures, and providing health and safety training focussing on the risk of use to self and co-workers whilst also examining demographic subgroups’ motivations for use.

    Download PDF (989K)
  • Tomoko SUZUKI, Koji WADA, Michiko NAKAZATO, Toshiyuki OHTANI, Yoko YOS ...
    2022 Volume 60 Issue 6 Pages 578-588
    Published: February 15, 2022
    Released on J-STAGE: December 01, 2022
    Advance online publication: February 15, 2022
    JOURNAL FREE ACCESS

    Individuals with high levels of autistic traits are at a high risk of experiencing depressive symptoms, and are also vulnerable to job stress. This study aimed to identify which combination of autistic traits and type of job stress are related to depressive symptoms. Participants comprised 992 workers from different regions of Japan. Autistic traits, depressive symptoms, and job stress were measured using the Autism-Spectrum Quotient, K6 scale, and Job Content Questionnaire, respectively. Logistic regression was performed to estimate the odds ratio and 95% confidence interval. Workers with high autistic traits scores reported significantly more depressive symptoms for all job stress types, especially high job demand. Depressive symptoms differed according to autistic traits and job stress. In workers with high autistic trait subscale scores, those with active job stress reported more depressive symptoms than those with high strain job stress, except for the “poor imagination” trait. This is contrary to previous reports that the active stress type is generally less associated with depressive symptoms than the high-strain stress type. To prevent depressive symptoms in workers with high autistic trait scores, it is important to understand which combination of autistic traits and type of job stress contribute to depressive symptoms.

    Download PDF (1129K)
Country Report
  • Mila TEJAMAYA, Wantanee PHANPRSIT, Jiwon KIM, Feng-Jen TSAI, Go MUTO, ...
    2022 Volume 60 Issue 6 Pages 589-598
    Published: January 12, 2022
    Released on J-STAGE: December 01, 2022
    Advance online publication: January 12, 2022
    JOURNAL FREE ACCESS

    The types of workplaces and occupations with coronavirus 2019 (COVID-19) clusters vary between countries and periods. We aimed to characterize major occupational groups with mass outbreaks of COVID-19 infections in several Asia-Pacific countries. Data on the major occupations or workplaces reporting COVID-19 cases in workplaces from January 2020 to July 2021 was collected from industrial hygiene professionals in nine countries. The proportion of workers accounted for 39.1 to 56.6% of the population in each country. The number of workers covered in the national statistics varies among nations based on their definition of a worker. None of the countries examined here have systematically collected occupational data on COVID-19 illnesses and deaths classified by type of industry, occupation, or job. Most countries experienced COVID-19 clusters among health and social care workers (HSCW) in hospitals or long-term care facilities. The types of occupations or workplaces with virus clusters in some participating countries included prisons, call centers, workplaces employing immigrants, garment facilities, grocery stores, and the military, which differed among countries, except for a few common occupations such as HSCW and those populated by immigrants. Further study is necessary in order to seek ways to control infection risks, including revisions to industrial-health-related laws.

    Download PDF (1041K)
feedback
Top