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This research on sleep disturbances emerged during the COVID-19 pandemic. Our study investigated the association between self-reported sleep disturbances among teleworkers and the preventive measures employers took to improve their working environment. Answers obtained via a web survey gathered from 1086 teleworkers (517 in the spring of 2021 and 569 in the spring of 2022) were analysed. The odds of self-reported sleep disturbances were significantly higher for all preventive measures in the group of respondents reporting a lack of a particular measure. The highest odds ratios were observed for the statement "My employer identified conditions where I am teleworking" (adjusted OR = 2.98, 95% CI 2.10-4.23) and "Online team-building events were organised" (adjusted OR = 2.85, 95% CI 1.88-4.35). The results of our study have revealed that workplace interventions that serve as a mediator for sleep disorders, even if they are not directly targeted at managing sleep disturbances or stress, can reduce the number of teleworkers reporting sleep disturbances. According to our knowledge, this is the first study reporting the effectiveness of employer interventions that help teleworkers manage their sleep disturbances.
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Introduction: The COVID-19 pandemic has globally influenced the exposure of populations to chemical substances through various channels. This study aims to evaluate the tendencies of the use of chemical products in Latvia amidst the pandemic. Answers from 597 respondents (26.6% male, 73.4% female, mean age 46.0 ± 12.2) which were gathered as part of the HBM4EU (Human Biomonitoring Initiative) citizen survey and 8 focus group participants were used. Methods: The study utilized data from the HBM4EU citizen survey and conducted focus group discussions to understand the impact of the COVID-19 pandemic on chemical product usage in Latvia. Survey responses were analyzed to identify changes in exposure to chemicals, particularly in relation to disinfection agents and household products. Results: More than two-thirds of survey participants reported increased exposure to chemicals during the COVID-19 pandemic, mainly related to the use of disinfection agents and household products. About 2-in-5 (39.8%) of survey respondents considered that the COVID-19 pandemic has increased their interest in exposure to chemicals. The excessive use of disinfectant products is the main concern of citizens (mentioned by 66.7%, n = 389). Also, two focus group participants noted that the use of disinfectant products is too widespread and should be minimized. Discussion: The findings suggest that the COVID-19 pandemic has not only increased the use of chemical products in Latvia but also promoted an interest in safe and healthy use of chemicals which could be useful to raise the awareness of the general public.
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COVID-19 , Grupos Focales , Humanos , Letonia/epidemiología , Femenino , Masculino , COVID-19/epidemiología , Persona de Mediana Edad , Adulto , Encuestas y Cuestionarios , Exposición a Riesgos Ambientales/estadística & datos numéricos , Desinfectantes , SARS-CoV-2 , Productos Domésticos , PandemiasRESUMEN
Background and Objective: Sapropel, a biologically active sedimentary deposit, is high in organic matter and minerals and has been shown to offer health benefits. Its constituents, humic acid (HA) and fulvic acid (FA), have been found to have some therapeutic applications. The aim of this study was to determine the potential therapeutically significant properties of freshwater sapropel extracts: their polyacid content, antioxidative (AO) status, and biological activity in cell culture. Materials and Methods: Freshwater lakes from the southeast region of Latvia were investigated layer by layer. The total organic carbon (TOC) was determined through combustion using the catalytic oxidation method, HA and FA were measured via acid perspiration, and the total polyphenol content (TPC) and total antioxidant status (TAS) was analysed spectrophotometrically. Sapropel extracts' regenerative abilities were tested in vitro using a Cell-IQ real-time monitoring system on mouse BALB/c 3T3 fibroblasts and human keratinocyte HaCaT cell lines. Cytotoxicity was measured through neutral red uptake assessment as a concentration-dependent reduction in the uptake of neutral red dye relative to a vehicle control or untreated cells. Results: The highest AO activity was observed in sapropel extracts with elevated concentrations of HA and TPC from Audzelu Lake (1.08 ± 0.03 mmol/L), and the lowest activity was found in extracts from Ivusku Lake (0.31 ± 0.01 mmol/L). Correspondingly, the concentrations of HA in Audzelu and Ivusku Lakes were recorded as 45.2 and 27.4 mg/g, respectively. High concentrations of HA promoted in vitro cell growth upon short-term exposure (up to 6 h). Conclusions: The results show that high TPC correlates with AO status and sapropel extracts with higher concentrations of HA exhibit greater AO activity and promote in vitro cell growth, suggesting a perspective use for short-term topical therapeutic skin applications. However, higher concentrations over longer durations showed cytotoxic effects, indicating the need for further investigation.
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Antioxidantes , Animales , Antioxidantes/farmacología , Antioxidantes/análisis , Antioxidantes/uso terapéutico , Ratones , Humanos , Cuidados de la Piel/métodos , Sustancias Húmicas/análisis , Benzopiranos/análisis , Benzopiranos/farmacología , Benzopiranos/uso terapéutico , Agua Dulce/análisis , Técnicas In Vitro , Células HaCaTRESUMEN
The study's objective was to investigate the associations between workplace conflicts and self-reported sickness presenteeism defined as going to work while being ill. Cross-sectional survey data pooled from four national surveys in years 2006, 2010, 2013 and 2018 with a study sample of 6368 employees (mean age 42.9 years and 52.9% females) were used. Respondents were randomly drawn from different regions and industries; therefore, the sample is representative of the working population of Latvia. The computer-assisted personal interviewing (CAPI) method was used to collect data at respondents' places of residence. The associations between conflicts in the workplace and presenteeism were analyzed by using binomial logistic regression and calculated as odds ratios (ORs) with 95% confidence intervals (CIs) adjusted (aOR) for gender, age, education, and survey year. On average, 11% of respondents reported sickness presenteeism during the last year. The odds of presenteeism significantly increased for all types of workplace conflicts, but most for conflicts with managers (OR = 2.84). The odds of presenteeism doubled for those reporting conflicts with other employees (OR = 2.19) and conflicts with customers (OR = 1.85). The odds of sickness presenteeism were significantly higher if the workplace conflicts occurred often (seven times for conflicts between managers and employees, and four times for conflicts with customers) and with other employees. Presenteeism frequency increased more than three times if respondents had more than two types of conflict at work. The results of this study show that having any type of conflict in the workplace significantly increases the frequency of sickness presenteeism, especially when conflicts are frequent or an employee has more types of conflicts in the workplace. The study results justify the need to implement targeted and effective workplace conflict management measures at the organizational level to decrease sickness presenteeism.
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Presentismo , Lugar de Trabajo , Adulto , Estudios Transversales , Femenino , Humanos , Letonia/epidemiología , Masculino , Encuestas y CuestionariosRESUMEN
The problem of painful and disabling work-related musculoskeletal disorders (MSDs) is increasing in many employment sectors of Latvia. Official statistics may underestimate the proportion of affected employees, causing delays in preventive interventions, ineffective rehabilitation, and a reduction of the workforce. This study investigated the prevalence of painful health conditions among Latvian workers by analyzing survey data and comparing these to official statistics on registered occupational diseases (ODs). A total of 2,446 workers participated in the state-level "Work conditions and risks in Latvia, 2017-2018" survey that included questions about pain lasting longer than 3 days during the previous year. The frequency of subjective reports on the presence, severity, and location of pain and related behaviors was assessed in relation to sex, age, education, and job position. Descriptive statistics and cross tabulation with the chi-squared test as well as multinomial logistic regression were applied to the data. Overall, 27.7% of respondents (n = 678) reported experiencing pain, predominantly in the lower back (14.3%) and mostly moderate (47.1%) or severe (45.1%). Only one-fifth of respondents (20.5%) took sick leave from work and one-third (29.0%) did not take action to alleviate their pain. Participants aged 55-74 years had a significantly higher odds ratio (OR) for pain in at least one body region-including hands and legs-than those aged 18-24 years. Women had significantly higher odds of headache (OR = 2.55) and neck pain (OR = 1.85) than men. Respondents with a primary or elementary education level had higher odds of pain in at least one body region (OR = 1.60) and in the lower back (OR = 1.86), while those with secondary education had higher odds of pain in hands (OR = 1.51) than employees with higher education. Unskilled workers had significantly higher odds of pain in hands (OR = 2.42) and legs (OR = 2.12) than directors. Official data revealed a dramatic increase in the proportion of MSDs and related disabilities in the last decade, reaching 75.5% of all first registered ODs in 2019. These results demonstrate a high prevalence of painful conditions among Latvian employees; urgent attention to diagnostics, treatment, and prevention is needed to ensure the musculoskeletal health and productivity of this population.
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Enfermedades Musculoesqueléticas , Enfermedades Profesionales , Femenino , Humanos , Letonia/epidemiología , Masculino , Enfermedades Musculoesqueléticas/epidemiología , Enfermedades Musculoesqueléticas/prevención & control , Enfermedades Profesionales/epidemiología , Enfermedades Profesionales/prevención & control , Dolor , PrevalenciaRESUMEN
Background: Poor knowledge of the language has been identified as a barrier to up-to-date occupational safety and health information, however, this question has not been addressed in the context of occupational safety and health expert competence in providing advice for employers in a small, non-English speaking country. Objectives: To analyze the available data on the use of languages for searching professional information by occupational safety and health (OSH) experts, and the sources of information on COVID-19 during the first wave of the pandemic in Latvia, and to assess if the knowledge of the English language among these experts is sufficient to react rapidly and effectively in case of emergency. Methods: Data were compiled from several different sources: three web-based surveys of occupational safety and health experts (data from 2006, 2010, and 2018) and ten focus group discussions with employers and occupational safety and health experts (data from 2020). Results: The results of the surveys show that between 2006 and 2018, the percentage of respondents using only one language (Latvian) for searching professional information in occupational safety and health has increased from 25 to 35.3%. In 2018, the English language was mentioned by only 42.8% of respondents and Russian by 46.8%. During the focus group discussions, the use of English was mentioned for obtaining trustful information from international organizations, for analysis of information received within international companies, for searching international experience, and for finding county-specific information. Discussion: Our study shows that knowledge of the English language for occupational safety and health experts working in Latvia is not sufficient. The companies providing external occupational safety and health services should establish a well-functioning internal training system to provide their non-English speaking experts with up-to-date information. Occupational safety and health-related non-governmental institutions should strengthen their capacity in sharing information related to different occupational safety and health aspects into the national language (Latvian in this particular case).
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COVID-19 , Salud Laboral , COVID-19/epidemiología , COVID-19/prevención & control , Humanos , Lenguaje , LetoniaRESUMEN
BACKGROUND: In general, companies with trade unions perform better in occupational health and safety, therefore, we assume that these companies should have performed better in transition to healthy and safe telework if compared with other companies. OBJECTIVE: The objective of the study was to assess the role of company trade unions on the implementation of telework arrangements in Latvia during the 1st emergency state in spring 2020 due to the COVID-19 pandemic. METHODS: A web-based survey based on snowball sampling method and social media advertisements was used to gather information from teleworkers. After data cleaning, answers from 422 teleworkers reporting having (wTU) or not having trade unions (nTU) in their companies were included in the analysis. RESULTS: There was a significantly higher percentage of workers with teleworking experience in companies with no trade unions (37.4% nTU versus 18.1% wTU). More respondents from companies with trade unions reported buying a new computer and headphones which means that more persons had to invest their finances to be able to perform their work. Workers from companies with no trade unions were more often advised on home office ergonomics (21.2% wTU versus 28.1% nTU). The odds of all analyzed health problems (pain, sore eyes, and anxiety) were increased in workers who reported having trade unions. CONCLUSION: Companies with trade unions were less ready for the forced transition to teleworking. These results contradict the traditional understanding of trade unions as a promoting factor for a healthy and safe working environment.
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COVID-19 , COVID-19/epidemiología , Humanos , Sindicatos , Letonia , Pandemias , SARS-CoV-2 , TeletrabajoRESUMEN
Considering the multitudes of people who spend their time working indoors in public premises and workplaces, it is worth knowing what their level of exposure is to natural radioactive radon gas, the second most widespread and dangerous carcinogen for lung cancer development after cigarette smoking. This state-level study covered most of the territory of Latvia and conducted 941 radon measurements with Radtrack2, placed for 4-6 months in the premises of public companies, educational institutions, medical care institutions, etc. The study found that 94.7% of samples did not exceed the national permissible limit (200 Bq/m3), the level at which preventive measures should be initiated. The median value of average specific radioactivity of radon in these premises was 48 Bq/m3 (Q1 and Q3 being 27 and 85 Bq/m3), which is below the average of the European region. Slightly higher concentrations were observed in well-insulated premises with plastic windows and poorer air exchange, mostly in schools (59 (36, 109) Bq/m3) and kindergartens (48 (32, 79) Bq/m3). Industrial workplaces had surprisingly low radon levels (28 (16, 55) Bq/m3) due to strict requirements for air quality and proper ventilation. Public premises and workplaces in Latvia mostly have low radon concentrations in the air, but more attention should be paid to adequate ventilation and air exchange.
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Contaminantes Radiactivos del Aire , Contaminación del Aire Interior , Monitoreo de Radiación , Radón , Contaminantes Radiactivos del Aire/análisis , Contaminación del Aire Interior/análisis , Humanos , Letonia , Radón/análisis , Lugar de TrabajoRESUMEN
Epidemiological restrictions due to the COVID-19 pandemic have raised legal and practical questions related to the provision of workplace risk assessment in home offices of teleworkers. The objective of this qualitative study was to analyze practical experience of employers and occupational safety and health experts performing workplace risk assessment in Latvia during the first wave of the COVID-19 pandemic. Our findings suggest that employers have not sufficiently implemented their legal obligations related to workplace risk assessment which can result in an increased number of physical and mental health problems of teleworkers in the short term and in the future. Work from home has shown how different working conditions can be for the same type of work (office work); therefore, the promotion of personalized workplace risk assessment should be encouraged. Even if virtual workplace visits using photos and videos are not the traditional way the workplace risk assessment should be done, it is effective; workers who report that their employers assessed their working conditions report fewer health effects. The experience of workers in participation in workplace risk assessment for telework might change the level and role of worker participation in the management of health and safety hazards at work in general.
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COVID-19 , Lugar de Trabajo , Humanos , Letonia/epidemiología , Pandemias , Medición de Riesgo , SARS-CoV-2RESUMEN
Inhalation is the main route of exposure to airborne pollutants. To evaluate the safety and assess the risks of occupational hazards different testing approaches are used. 3D airway epithelial tissues allow to mimic exposure conditions in vitro, generates human-relevant toxicology data, allows to elucidate the mode of action of pollutants. Gillian3500 pumps were used to collect the airborne particulate from woodworking and metalworking environments. EpiAirway tissues were used to model half working day (4 h), full working day (8 h), and 3 working day exposures to occupational pollutants. Tissue viability was assessed using an MTT assay. For preliminary assessment, RT-qPCR analyses were performed to analyze the expression of gelsolin, caspase-3, and IL-6. Tissue morphology was assessed by hematoxylin/eosin staining. An effect on the proliferation of lung epithelial cell line A549 was assessed. Acute exposure to workspace pollutants slightly affected tissue viability and did not change the morphology. No inhibiting effect was observed on the proliferation of A549 cells. Preliminary analysis showed that both types of particles suppressed the expression of gelsolin, with the effect of metalworking samples being more pronounced. A slight reduction in caspase-3 expression was observed. Particles from metalworking suppressed IL-6 expression.
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Caspasa 3/genética , Gelsolina/genética , Exposición por Inhalación/efectos adversos , Interleucina-6/genética , Pulmón/citología , Exposición Profesional/análisis , Material Particulado/toxicidad , Células A549 , Proliferación Celular/efectos de los fármacos , Monitoreo del Ambiente , Perfilación de la Expresión Génica , Regulación de la Expresión Génica/efectos de los fármacos , Humanos , Pulmón/química , Pulmón/efectos de los fármacos , Metalurgia , Tamaño de la Partícula , Supervivencia Tisular/efectos de los fármacos , MaderaRESUMEN
All the employees face the challenge of finding the right work-life balance. The ability of employees to deal with the successful combining of work, family responsibilities, and personal life is crucial for both employers and family members of employees. During the COVID-19 emergency situation, many people around the world were forced to work remotely. Initially, there were observed some certain expectations about the possibility of working from home as a positive factor that will promote work-life balance. However, over time, negative tendencies were also revealed, as employees were only one call or message away from the employer, and uncertainty and leisure time with family often created more stress. As many organizations and individuals were not ready for this sudden change, many mistakes were made, which further raised the issue of work-life balance. The aim of the research was to evaluate the flexibility of reconciling work and private life of Latvian employees in various socio-demographic groups during the COVID-19 emergency situation in spring 2020, to investigate how family life influenced employees' ability to perform work duties, to find out if employees had any additional housework responsibilities and how their workload changed concerning housework amount during the COVID-19 emergency situation. The research is based on the data obtained in the survey of the Latvian employed population, which was conducted within the framework of the Latvian National Research Programme Project "CoLife" in the second half of 2020. As a result, the hypothesis of the research that all groups of employees experienced work-life balance difficulties during the COVID-19 emergency situation has been partially confirmed, i.e., women in the 18-44 age group and respondents with minor children in the household more likely faced difficulties of work-life balance. The scientific research methods that were used in the research are the monographic method, content analysis, survey, data processing with SPSS to determine the mutual independence of the data from the questionnaires.
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Several individual factors like older age and chronic diseases have been linked with more severe symptoms often leading to hospitalization and higher mortality from COVID-19. Part of adults with such factors is still active in the workforce. The objective of the study was to identify measures taken by the employer to protect them and to investigate reasons for low protection of vulnerable workers during the 1st wave of the COVID-19 pandemic. Answers from 1000 workers collected via web-survey and results from 10 focus group discussions were analyzed. Only 31.5% of respondents mentioned that their employer had identified existing vulnerable groups and offered specific measures to protect them. Moving vulnerable workers away from the workplace was the most frequent measure (e.g., transfer to the back-office without contact with clients, telework, paid vacations, paid downtime). Most employers do not see elderly workers and workers with chronic diseases as risk groups, thus are not specifically protecting them. Instead, several employers have included workers critical for business continuity in their risk group. Others had not taken measures because of the lack of information due to general data protection regulation. Poor communication and lack of interest of employers to ask their workers if they need special protection is the topic to be addressed at the national level.
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COVID-19 , Pandemias , Adulto , Anciano , Humanos , Letonia , SARS-CoV-2 , Lugar de TrabajoRESUMEN
Sickness absence is one of the most important working population health indicators. It is a complex phenomenon that is investigated by health care and occupational health specialists, economists, and work psychologists. Sickness absence is used as a predictor for morbidity and mortality, but besides the health status of an individual, sickness absence is influenced by demographic, socio-economic factors, and work environment factors. Conflicts at work are a common psychosocial risk factor that can affect sickness absence. The aim of the study was to investigate the association between different types of workplace conflict and self-reported medically certified sickness absence using cross-sectional survey data pooled from four periodic national surveys-Work conditions and risks in Latvia (2006-2018). The sample is representative of the working population of Latvia, as respondents were randomly drawn from different regions and industries. In total, the study sample (n = 8557) consisted of employees between 16 and 80 years old (average 42.8 +/- 12.6) of which 46.2% were males and 53.8% were females. Researchers used the computer-assisted personal interviewing (CAPI) method for collecting data. The association between workplace conflicts and sickness absence was analysed by using binomial logistic regression and calculated as odds ratios (OR) with 95% confidence intervals (CI), with adjustment for gender, age, education and survey year. The risk of sickness absence was higher among women (OR = 1.24, CI 1.13-1.35), employees aged 25-44 years old and employees with higher income. Controlling for socio-demographic factors and survey year, the odds of sickness absence increased significantly for all types of workplace conflict analysed. The strongest association with sickness absence was related to conflicts between managers and employees (OR = 1.51, CI 1.37-1.66) and conflicts between groups of employees (OR = 1.45, CI 1.31-1.61). Conflicts between employees and with customers also increased the odds of sickness absence (OR = 1.39, CI 1.27-1.52 and OR = 1.11, CI 1.01-1.23, respectively). Our findings suggest that tailored interventions at a company level for reducing workplace conflicts as risk factors of sickness absence are required. Those should focus on the improvement of managers' leadership and human resource management skills.
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Absentismo , Lugar de Trabajo , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Letonia , Masculino , Persona de Mediana Edad , Autoinforme , Ausencia por Enfermedad , Encuestas y Cuestionarios , Adulto JovenRESUMEN
Development trends need the necessity for wider use of the local resources and available natural materials are one of the priorities around the world. Freshwater sapropel is a common material in the water basement of the lakes, but still not sufficiently explored. The main goal of the project to start detailed and systematic research on the medical properties of sapropel to be obtained in Latvia, promote its scientifically based use in balneology, develop new medical procedures and services, and promote development of new exportable products. The results include the survey, sampling depths, and processing, evaluation of external signs, physical, chemical, and biochemical parameters, and evaluation of microbiological indicators. Active components from the sapropel samples extracted using the alkaline method. Sapropel extracts were characterized by organic carbon content, humic and fulvic acid concentrations, total phenolic content, trace metal and pesticide concentrations, total antioxidant status, and microbiological flora. Summarizing the article's main findings it was concluded that Latvian freshwater sapropel can be used as raw material for obtaining sapropel extract and use it in the preparation of pharmaceuticals and promote the development of new exportable products and services.
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Benzopiranos/farmacología , Suelo/química , Contaminación Ambiental , Sustancias Húmicas/análisis , Lagos , Letonia , Peloterapia/métodos , Preparaciones Farmacéuticas , OligoelementosRESUMEN
Reducing the burden of occupational cancers (OCs) is currently one of the most challenging Occupational Health (OH) issues. The European Union (EU) has made efforts to improve the existing legal framework and developed specific legislation aimed at reducing the burden of OC. However, available data suggest that OC are underreported. In August 2019, the European Association of Schools of Occupational Medicine (EASOM) adopted a statement that highlighted the importance of improving the education and training of Medical Doctors (MDs) to facilitate improvements in recognizing and reporting OC. To achieve this, EASOM proposes to promote OH education and training of MDs at undergraduate and postgraduate levels, foster harmonization of OH education and teaching standards and programs across EU countries, and enhance cooperation between universities and international scientific associations. Finally, we suggest that occupational data should be recorded in cancer and medical registers. By engaging MDs more fully in the debate about OCs, they will become more aware of the Occupational Physician's role in reducing the burden of OCs and, furthermore, embed consideration of occupation as a potential cause of cancer into their own practice. These interventions will help promote the implementation of policies and interventions aimed to reduce OC in the workplace.
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Neoplasias/prevención & control , Enfermedades Profesionales/prevención & control , Medicina del Trabajo/educación , Unión Europea , Humanos , Lugar de TrabajoRESUMEN
BACKGROUND AND OBJECTIVE: Health care workers (HCWs) have a great background to promote their health - not only their professional knowledge on health but often also special equipment in their work environment. However, it is unclear if HCWs can use such infrastructure to promote their own health as well as what is their motivation to change their own lifestyles. Thus, the aim of the article was to describe workplace health promotion (WHP) situation in health care settings in Finland, Latvia, and Lithuania. MATERIALS AND METHODS: A questionnaire survey of 357 workers from health care sector in three European countries was conducted. Participants were asked to indicate various WHP activities/facilities/programs organized at their workplaces, WHP needs, opportunities to initiate changes related to the healthiness of their workplaces, and readiness to change their lifestyles. RESULTS: Participants from three European countries differed in their WHP needs and in their responses on various activities/facilities/programs implemented at the institutions. Workers from Finnish institutions had the greatest opportunities to make initiatives relevant to their workplaces' healthiness, while Lithuanian workers were least provided with such opportunities. Furthermore, the results showed that there were differences of readiness to change among the workers from the three countries. CONCLUSIONS: HCWs recognized various WHP activities, facilities and programs organized at their workplaces; however, their needs were notably higher than the situation reported. WHP situation differed among the three European countries.
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Personal de Salud , Promoción de la Salud , Lugar de Trabajo , Europa (Continente) , Humanos , Motivación , Encuestas y CuestionariosRESUMEN
Currently, nanoparticles are widely present in the environment and are being used in various industrial technologies. Nanoparticles affect immune functions, causing different immune responses. The aim of the current study was to evaluate several cytokines, interleukin (IL)-1b, IL-6, IL-8, tumour necrosis factor-a (TNF-α), interferon-γ, adhesive molecule sICAM-1, macrophage inhibitory protein 1a (MIP1a) and secretory immunoglobulin A, in nasal lavage fluid and in the peripheral blood of healthy subjects exposed to workplace nanoparticles. Thirty-six employees from three different environments were examined: 12 from a metalworking company, 12 from a woodworking company and 12 office workers. The nanoparticles in the different workplaces were detected in the air in the immediate vicinity of the employees. The particle number concentration and surface area values were significantly higher in the workplaces of the metal- and woodworking industries, but concentrations of mass were lower (the measurements were performed by an electrical low-pressure impactor ELPI+). Energy dispersive X-ray spectroscopy (EDS, an attachment to a high-resolution SEM) was used to provide elemental analysis or chemical characterization of the dust particles in a low-vacuum field-free mode operating at a potential of 15 kV spot 3.0. The technique used provided quantitative and spatial analyses of the distribution of elements through mapping (two to three parallel measurements) and point analysis (four to five parallel measurements). Samples from the metal industry contained more ultramicroscopic and nanometric particles, e.g. toxic metals such as Zn, Mn and Cr, and fewer microscopic dust particles. The nasal lavage and peripheral blood were taken at the beginning and the end of the working week, when immune indices were measured. Our data showed a statistically significant increased level of the pro-inflammatory cytokine TNF-α in serum in both exposed groups compared with office workers as well as a higher level of TNF-α in workers from the woodworking company compared with the metalworking employees. We found an elevated level of IL-6 in the exposed groups as well as an elevated level of IL-8 in the nasal lavage in woodworking employees after work.
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Computer work is characterized by sedentary static workload with low-intensity energy metabolism. The aim of our study was to evaluate the dynamics of skin surface temperature in the hand during prolonged computer mouse work under different ergonomic setups. Digital infrared imaging of the right forearm and wrist was performed during three hours of continuous computer work (measured at the start and every 15 minutes thereafter) in a laboratory with controlled ambient conditions. Four people participated in the study. Three different ergonomic computer mouse setups were tested on three different days (horizontal computer mouse without mouse pad; horizontal computer mouse with mouse pad and padded wrist support; vertical computer mouse without mouse pad). The study revealed a significantly strong negative correlation between the temperature of the dorsal surface of the wrist and time spent working with a computer mouse. Hand skin temperature decreased markedly after one hour of continuous computer mouse work. Vertical computer mouse work preserved more stable and higher temperatures of the wrist (>30 °C), while continuous use of a horizontal mouse for more than two hours caused an extremely low temperature (<28 °C) in distal parts of the hand. The preliminary observational findings indicate the significant effect of the duration and ergonomics of computer mouse work on the development of hand hypothermia.
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Computadores , Ergonomía , Hipotermia/etiología , Enfermedades Profesionales/etiología , Temperatura Cutánea/fisiología , Muñeca/fisiopatología , Adulto , Femenino , Humanos , Hipotermia/diagnóstico , Hipotermia/fisiopatología , Rayos Infrarrojos , Masculino , Enfermedades Profesionales/diagnóstico , Enfermedades Profesionales/fisiopatología , Proyectos Piloto , Conducta Sedentaria , Termometría/métodosRESUMEN
BACKGROUND: This article investigates the legal database and theoretical basis of workplace health promotion (WHP) in three European countries: Finland, Latvia and Lithuania, and aims to find insights into effective WHP implementation. METHODS: In November 2013, a stakeholders' survey was carried out. The questionnaire included questions about legal documents and non-legislative measures relevant to WHP, institutions and other bodies/organizations working in the field, WHP conception/definition, and implementation of WHP activities according to the enterprises' size. RESULTS: Only Finland has adopted a specific law on occupational health care (separate from occupational safety). ILO conventions No. 161 (Occupational Health Services Convention) and No. 187 (Promotional Framework for Occupational Safety and Health Convention) are ratified only in Finland. In Finland, the Ministry of Social Affairs and Health acts as one ministry, while two Baltic countries have two separate ministries (one for health and another for social affairs). None of the countries has legally approved a definition of WHP. Latvia and Lithuania tend to separate WHP from other activities, whereas Finland integrates WHP into other occupational health and safety elements. CONCLUSIONS: Finland has a more extensive legislative and organizational background to WHP than Latvia and Lithuania. In defining WHP, all the countries refer to the Luxembourg Declaration on Workplace Health Promotion in the European Union. Finland's practice of integrating WHP into other occupational health and safety elements is important.