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2.
Artigo em Inglês | MEDLINE | ID: mdl-36673711

RESUMO

This study intended to investigate whether the workload of nurses in the course of providing end-of-life care correlated with their religiousness, spiritual experience and level of agreement with dysthanasia procedures. The respondents included 279 nurses from four Croatian hospitals. A structured and validated instrument was applied. Almost 90% of respondents are religious, and almost 45% of them have daily spiritual experiences. Respondents, especially those with high levels of religiousness and spiritual experience, express a low level of agreement with dysthanasia (mean = 58.21; score = 25-125). Moreover, nurses self-rated (on a scale of 1-5) their workload as quite high, especially when performing contradictory tasks imposed on them by their superiors (mean = 3.05) and during direct contact with dying patients and their family members (mean = 2.56). This significantly highest level of workload was experienced by the youngest nurses (p = 0.01) and nurses with little work experience (p < 0.01). This study also indicated that nurses who agree with dysthanasia experienced a higher level of workload when providing end-of-life care (r = 0.178; p < 0.01), while more frequent spiritual experiences reduced the level of workload (r = -0.205; p < 0.01). A deeper understanding of nurses' attitudes toward dysthanasia, as well as of their religiousness and spiritual experiences, may ensure the collection of data beneficial to the timely identification of potential risks caused by workload.


Assuntos
Enfermeiras e Enfermeiros , Assistência Terminal , Humanos , Espiritualidade , Carga de Trabalho , Religião
3.
Artigo em Inglês | MEDLINE | ID: mdl-36673725

RESUMO

Work characteristics may independently and jointly affect well-being, so that whether job demands deplete or energize employees depends on the resources available in the job. However, contradictory results on their joint effects have emerged so far in the literature. We argue that these inconsistencies can be partially explained by two arguments in the contemporary literature in the field. First, most studies in the job design domain are based on classic variable-centered methodologies which, although informative, are not well suited to investigate complex patterns of interactions among multiple variables. Second, these studies have mainly focused on generic work characteristics (e.g., workload, control, support), and are lacking in occupational specificity. Thus, to overcome these limitations, in the current research we include generic and occupation-specific work characteristics and adopt a person-centered approach to (a) identify different patterns of interactions of job demands and resources in a sample of healthcare employees, and (b) determine the degree to which these patterns are associated with employee well-being. We involved a sample of 1513 Italian healthcare providers and collected data on key job demands (workload, emotional dissonance, patient demands and physical demands) and resources (control, management support and peers' support). We focused on job satisfaction as a broad indicator of well-being. Latent profile analysis revealed four profiles of job demands and resources: high strain-isolated, resourceless, resourceful and active job on the ward. The results of Bayesian informative hypothesis testing showed the highest support for the hypothesis stating that healthcare employees belonging to the active job on the ward profile (medium-high demands, high resources) were the most satisfied. Conversely, employees belonging to the high strain-isolated profile (high demands, low resources) and the resourceless profile (medium-low demands, low resources) were the least satisfied. Overall, our study confirms the key role played by job resources in determining well-being in high-risk sectors, demonstrating that job satisfaction can develop both in challenging and less demanding situations. On a practical level, mapping the complexity of the healthcare psychosocial work environment has important implications, allowing for a better assessment process of employee well-being and helping to identify the most effective and fitting interventions.


Assuntos
Setor de Assistência à Saúde , Satisfação no Emprego , Humanos , Teorema de Bayes , Pessoal de Saúde/psicologia , Carga de Trabalho/psicologia , Inquéritos e Questionários
4.
Occup Environ Med ; 80(2): 61-69, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36635099

RESUMO

OBJECTIVES: Studies have demonstrated an association between doctors' perceived working conditions, and their psychological well-being and patient care. However, few have examined inter-relationships among these three domains, and even fewer using longitudinal designs. Using meta-analytical structural equation modelling, we tested longitudinal relationships among doctors' perceived working conditions, their psychological well-being and patient care. We further tested if doctors' psychological well-being mediates the relationship between perceived working conditions and patient care. METHODS: We carried out a systematic review using Academic Search Premier, Business Source Premier, PsycInfo, PsycArticles and Medline for the 20-year period between January 2000 and the start of the pandemic (January 2020). We included studies with practising doctors as participants, and that reported a quantifiable bivariate effect size between at least two of the three constructs of interest-perceived working conditions (ie, job demands, job resource), psychological well-being (ie, emotional exhaustion, work engagement) and patient care (ie, clinical care, patient safety). We pooled relationship effect sizes using random-effects meta-analysis, before testing for indirect effects using two-stage structural equation modelling. RESULTS: Twenty-three samples from 11 countries representing 7275 doctors were meta-analysed. The results indicated that job resources predicted work engagement (ρ=0.18; 95% CI 0.11 to 0.24) and emotional exhaustion (ρ=-0.21; 95% CI -0.31 to -0.11), while job demands predicted emotional exhaustion (ρ=0.27; 95% CI 0.17 to 0.36). Better clinical care was also associated with higher levels of job resources (ρ=0.16; 95% CI 0.04 to 0.29), and lower levels of emotional exhaustion (ρ=-0.21; 95% CI -0.37 to -0.12) and job demands (ρ=-0.27; 95% CI -0.43 to -0.10). Both factors of the work environment were associated with clinical care through doctors' emotional exhaustion, but there were insufficient studies to test the indirect effects for work engagement or patient safety. CONCLUSION: Our results demonstrate the need for a systems perspective to address working conditions to support both doctors' psychological well-being and patient care. Interventions should target doctors' job resources as they are more strongly associated with psychological well-being. However, given that job demands were strongly associated with emotional exhaustion, and in turn, clinical care, there is a need to better manage doctors' workload, conflict and pressure to support the current psychological well-being crises among this occupational group. PROSPERO REGISTRATION NUMBER: CRD42020189070.


Assuntos
Esgotamento Profissional , Condições de Trabalho , Humanos , Satisfação no Emprego , Inquéritos e Questionários , Estudos Longitudinais , Carga de Trabalho/psicologia , Assistência ao Paciente
6.
Artigo em Inglês | MEDLINE | ID: mdl-36673940

RESUMO

In the manufacturing environments of today, human-machine systems are constituted with complex and advanced technology, which demands workers' considerable mental workload. This work aims to design and evaluate a Graphical User Interface developed to induce mental workload based on Dual N-Back tasks for further analysis of human performance. This study's contribution lies in developing proper cognitive analyses of the graphical user interface, identifying human error when the Dual N-Back tasks are presented in an interface, and seeking better user-system interaction. Hierarchical task analysis and the Task Analysis Method for Error Identification were used for the cognitive analysis. Ten subjects participated voluntarily in the study, answering the NASA-TLX questionnaire at the end of the task. The NASA-TLX results determined the subjective participants' mental workload proving that the subjects were induced to different levels of mental workload (Low, Medium, and High) based on the ANOVA statistical results using the mean scores obtained and cognitive analysis identified redesign opportunities for graphical user interface improvement.


Assuntos
Análise e Desempenho de Tarefas , Carga de Trabalho , Humanos , Carga de Trabalho/psicologia , Sistemas Homem-Máquina , Inquéritos e Questionários , Cognição
7.
Artigo em Inglês | MEDLINE | ID: mdl-36673966

RESUMO

A cross-sectional study of 3860 health-sector workers across two data collections was conducted to identify the predictive power of different job demands and job resources during the COVID-19 pandemic based on four indicators of distress (COVID-19 traumatic stress, burnout, generalised anxiety, and depression) among health-sector workers. Exploratory and confirmatory factor analyses, measurement invariance checks, and structural equation models were used to evaluate the dimensionality and the effect of the job demands and resources on distress indictors. The identified job demands were workload, confinement, loss, and virus exposure, while the identified job resources were self-efficacy, momentary recuperation, and meaning making. Loss and workload predicted the distress indicators best, while confinement and virus exposure mainly predicted COVID-19 traumatic stress and were less important for the other distress outcomes. Self-efficacy and meaning making negatively predicted distress, while momentary recuperation, controlled for the other demands and resources, was positively related to the distress indicators. Of the typical pandemic-related demands and resources, the experience of loss due to COVID-19 infection was the most important predictor of distress outcomes. Confinement, and especially the awareness of virus exposure, were far less important predictors.


Assuntos
Esgotamento Profissional , COVID-19 , Humanos , Pandemias , Inquéritos e Questionários , Estudos Transversais , COVID-19/epidemiologia , Esgotamento Profissional/epidemiologia , Satisfação no Emprego , Carga de Trabalho
8.
Artigo em Inglês | MEDLINE | ID: mdl-36673989

RESUMO

Algorithms are increasingly used instead of humans to perform core management functions, yet public health research on the implications of this phenomenon for worker health and well-being has not kept pace with these changing work arrangements. Algorithmic management has the potential to influence several dimensions of job quality with known links to worker health, including workload, income security, task significance, schedule stability, socioemotional rewards, interpersonal relations, decision authority, and organizational trust. To describe the ways algorithmic management may influence workers' health, this review summarizes available literature from public health, sociology, management science, and human-computer interaction studies, highlighting the dimensions of job quality associated with work stress and occupational safety. We focus on the example of work for platform-based food and grocery delivery companies; these businesses are growing rapidly worldwide and their effects on workers and policies to address those effects have received significant attention. We conclude with a discussion of research challenges and needs, with the goal of understanding and addressing the effects of this increasingly used technology on worker health and health equity.


Assuntos
Saúde do Trabalhador , Humanos , Relações Interpessoais , Carga de Trabalho
9.
Artigo em Inglês | MEDLINE | ID: mdl-36674044

RESUMO

(1) Background: Empirical studies have started to examine employees' subjective appraisals of job demands and their relations to employees' health. However, knowledge of working conditions, which might contribute to how employees appraise specific job demands, is scarce. The present study aimed to examine predictors of nurses' appraisals of job demands (i.e., time pressure, emotional demands, physical demands, and role ambiguity) as challenges and/or threats among corresponding job resources (i.e., autonomy, social support, physical resources, participation in decision-making). It also examined moderating effects of these predictors. (2) Methods: Cross-sectional data were collected via an online survey in a sample of 425 nurses working in Luxembourg. (3) Results: Multiple regression analyses indicated that matching job resources predicted nurses' appraisal of job demands as challenging. Threat appraisal was predicted by three out of four kinds of job resources (i.e., autonomy, physical resources, participation in decision-making). However, the current study did not find any moderating effects between job demands and job resources on challenge/threat appraisals. (4) Conclusions: The present study identified domain-specific job resources that contribute to how employees perceive selected job demands. Accordingly, we encourage scholars and practitioners to align job demands with matching job resources to prevent nurses' threat appraisal of job demands, and to promote their challenge appraisals.


Assuntos
Esgotamento Profissional , Humanos , Estudos Transversais , Esgotamento Profissional/psicologia , Carga de Trabalho/psicologia , Inquéritos e Questionários , Análise de Regressão , Satisfação no Emprego
10.
Artigo em Inglês | MEDLINE | ID: mdl-36674343

RESUMO

Work-related musculoskeletal disorders are some of the most prevalent diseases in the world. They have a multifactorial aetiology encompassing ergonomic and psychosocial risk factors. The aim of this study is to analyse the way job insecurity and physical workload are linked to musculoskeletal disorders, as well as the mediating role other psychosocial work risks can have on this potential relationship. A parallel mediation path regression analysis was designed using a sample of 457 nursing aides. The influence job insecurity and physical workload has on the onset of musculoskeletal symptoms together with the variables which mediate this relationship were examined. The results prove that both independent variables explain the onset of musculoskeletal symptoms in these professionals. The influence exerted by job insecurity is mediated by the social support received at work and the demands of the job. However, when analysing the physical workload, the social support received at work is not relevant as a mediator in this relationship. Job insecurity and physical workload are significant variables on the occurrence of musculoskeletal symptoms. The data obtained supports the need to focus on physical and psychosocial factors in order to prevent these disorders.


Assuntos
Doenças Musculoesqueléticas , Doenças Profissionais , Humanos , Doenças Profissionais/etiologia , Doenças Musculoesqueléticas/etiologia , Ergonomia , Análise de Regressão , Fatores de Risco , Carga de Trabalho/psicologia , Emprego
11.
Nurs Adm Q ; 47(1): 55-63, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36469374

RESUMO

For newly graduated nurses (NGNs), the characteristically challenging and dynamic period of transition from student to professional practitioner is being further strained by global crises and the uncertainty and insecurity they motivate, health care systems and institutional restructuring, and extreme workload burdens. A novel approach to aiding the transition of NGNs is detailed in this article, culminating in the offering of an inclusive framework of potential strategies aimed at supporting NGNs and those who lead, manage, and educate them. This approach outlines strategies of support deliverable by both centralized and local means and acknowledging contemporary needs such as workload burdens and generationally-sensitive employee needs. Nursing The Future is a platform that uniquely situates an evidence-based, grassroots-driven response to the needs of NGNs, while encouraging collaborative partnering of health care institutions with governmental, professional, and regional advanced education bodies. This is the second article in a 2-part series that builds on the historical and developmental intents of Nursing The Future as an organization and outlines how evidence-informed, creative, and affordable grassroots-driven supports may be offered to NGNs for the purpose of sustaining and advancing our future nurse professionals.


Assuntos
COVID-19 , Humanos , COVID-19/epidemiologia , Carga de Trabalho , Atenção à Saúde
12.
Phys Ther Sport ; 59: 92-102, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36528005

RESUMO

OBJECTIVES: To investigate risk factors for injury and illness in female and male youth floorball players (12-17 years) during a 26-week floorball season. DESIGN: Prospective cohort study. SETTING: Recreational youth sport. PARTICIPANTS: 471 players (142 females) 12-17 years. MAIN OUTCOME MEASURES: Weekly survey including questions about stress, sleep quality, well-being, sport exposure and average weekly rating of perceived exertion (RPE). Acute:chronic workload ratio (ACWR) was calculated. The Oslo Sports Trauma Research Center questionnaire on health problems was used. Predictors of new injury and illness were examined using multi-level logistic regression models with weekly measures nested within individuals. RESULTS: Higher stress, poorer sleep quality and well-being increased the odds of a new injury in the subsequent week by 8% (2.0-13.5%), 10% (4.2-15.9%) and 8% (2.4-13.5%) per 1 unit increase. Higher stress, and poorer well-being increased the odds of illness by 8% (2.6-12.6%), and 12% (7.2-16.6%). ACWR below 0.8 or above 1.3 increased the odds of illness by 34% (4.9-70.8%). CONCLUSIONS: Perceived stress, well-being, and sleep quality were associated with injury and illness occurrence in the subsequent week. ACWR outside the range 0.8-1.3 was associated with illness the subsequent week. TRIAL REGISTRATION: Clinical Trials registration NCT03309904.


Assuntos
Traumatismos em Atletas , Futebol , Humanos , Masculino , Feminino , Adolescente , Estudos Prospectivos , Futebol/lesões , Fatores de Risco , Traumatismos em Atletas/epidemiologia , Carga de Trabalho
13.
Med Educ Online ; 28(1): 2152495, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36472339

RESUMO

BACKGROUND AND OBJECTIVES: Burnout is a widespread problem in medicine, especially among trainees. Despite this, data on effective interventions are limited. An organizational context for burnout entitled Areas of Worklife identified six areas of the work environment that can affect burnout through mismatches between individuals expectations of that area and the reality of the work environment. This study aimed to gain a deeper understanding of pediatric residents' perspectives of the Areas of Worklife to allow programs to utilize this framework in the development of future interventions. METHODS: Using qualitative methodology founded in grounded theory, we employed an iterative data collection by conducting semi-structured interviews, until data saturation was achieved, with 15 pediatric residents in 2018. We recorded interviews and transcribed them verbatim. Content analysis was conducted concurrently with data collection using constant comparison methods; the principal investigator and co-investigators worked jointly to generate codes and identify themes. RESULTS: Themes were identified for the individual Areas of Worklife that represented resident perspectives and mismatches with the work environment. Overall, patient care was a central focus connecting the areas of control, reward, values, and workload; themes in these areas concentrated on resident's ability to interact with and learn from patients. CONCLUSIONS: Residents' definitions of the Areas of Worklife can be used to identify mismatches between residents' expectations and their work environment, which can inform organizational interventions. These findings highlight the importance of a patient-focused approach to residency training, which is consistent with literature that shows patient care is a means to find meaning in their work. Resident definitions of the Areas of Worklife offer residency programs a practical approach in their battle against burnout by providing focused direction to respond to resident needs and identify tangible targets for intervention.


Assuntos
Esgotamento Profissional , Internato e Residência , Criança , Humanos , Esgotamento Psicológico , Coleta de Dados , Carga de Trabalho , Pediatria
14.
Eur J Radiol ; 158: 110631, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36481480

RESUMO

The ultimate goals of the application of artificial intelligence (AI) to digital breast tomosynthesis (DBT) are the reduction of reading times, the increase of diagnostic performance, and the reduction of interval cancer rates. In this review, after outlining the journey from computer-aided detection/diagnosis systems to AI applied to digital mammography (DM), we summarize the results of studies where AI was applied to DBT, noting that long-term advantages of DBT screening and its crucial ability to decrease the interval cancer rate are still under scrutiny. AI has shown the capability to overcome some shortcomings of DBT in the screening setting by improving diagnostic performance and by reducing recall rates (from -2 % to -27 %) and reading times (up to -53 %, with an average 20 % reduction), but the ability of AI to reduce interval cancer rates has not yet been clearly investigated. Prospective validation is needed to assess the cost-effectiveness and real-world impact of AI models assisting DBT interpretation, especially in large-scale studies with low breast cancer prevalence. Finally, we focus on the incoming era of personalized and risk-stratified screening that will first see the application of contrast-enhanced breast imaging to screen women with extremely dense breasts. As the diagnostic advantage of DBT over DM was concentrated in this category, we try to understand if the application of AI to DM in the remaining cohorts of women with heterogeneously dense or non-dense breast could close the gap in diagnostic performance between DM and DBT, thus neutralizing the usefulness of AI application to DBT.


Assuntos
Densidade da Mama , Neoplasias da Mama , Feminino , Humanos , Carga de Trabalho , Inteligência Artificial , Detecção Precoce de Câncer/métodos , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/epidemiologia , Mamografia/métodos , Programas de Rastreamento/métodos , Estudos Retrospectivos
15.
Nurs Educ Perspect ; 44(1): 30-35, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36580619

RESUMO

AIM: This study explored how full-time, prelicensure baccalaureate nursing faculty members described their experiences with work-life balance. BACKGROUND: With increasing shortages of nursing faculty and practicing nurses, schools of nursing are developing faculty recruitment and retention efforts. It is imperative to understand the experiences of nursing faculty with regard to balancing their work and personal lives. METHOD: A web-based survey including two open-ended questions related to work-life balance was disseminated to deans of nursing programs, who disseminated the survey to nursing faculty. Thematic analysis was used to analyze the data. RESULTS: The sample (n = 320) was representative of current nursing faculty demographics. Three themes emerged: Relationship With Administration, Nursing Faculty Workload, and Boundary Setting. Opposing subthemes were noted in each theme. CONCLUSION: Administrators may use the findings from this study to create administrator and faculty development opportunities and mentorship programs that promote work-life balance of nursing faculty.


Assuntos
Bacharelado em Enfermagem , Equilíbrio Trabalho-Vida , Humanos , Docentes de Enfermagem , Emprego , Carga de Trabalho , Inquéritos e Questionários
16.
Am J Nurs ; 123(1): 56-57, 2023 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-36546392

RESUMO

According to this study: Hand hygiene compliance decreased significantly in the ICU setting when the number of hand hygiene opportunities exceeded 30 per hour.Adequate staffing during higher workload periods is needed to ensure that health care providers maintain a high level of hand hygiene compliance.


Assuntos
Infecção Hospitalar , Higiene das Mãos , Humanos , Desinfecção das Mãos , Carga de Trabalho , Fidelidade a Diretrizes , Pessoal de Saúde , Controle de Infecções
17.
Artif Intell Med ; 134: 102430, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36462908

RESUMO

Patients' waiting time is a major issue in the Canadian healthcare system. The planning for resource allocation impacts patients' waiting time in medicare settings. This research focuses on the reduction of patients' waiting time by providing better planning for radiological resource allocation and efficient workload distribution. Resource allocation planning is directly related to the number of patient-arrival and it is hard to predict such uncertain parameters in the future time frame. The number of patient-arrival also varies across different modalities and different timeframes which makes the patient-arrival prediction challenging. In this research, a new three-phase solution framework is proposed where a new multi-target machine learning technique is integrated with an optimization model. In the first phase, a novel Ensemble of Pruned Regressor Chain (EPRC) model is developed and trained offline to predict uncertain parameters, such as patients' arrival. The proposed model is then compared with two popular multi-target prediction methods to evaluate the model's accuracy. In the second phase, the trained model is deployed in the real-time environment to forecast patients' arrival, miss Turn Around Time (miss-TAT) rate, and probable workload count. The forecasted data is used in phase three where a new multi-objective optimization model is developed to determine workload allocation. The Weighted-sum method is used to get efficient solutions. The proposed model is deployed in a Canadian healthcare company and evaluated using real-time healthcare data. It is observed in terms of accuracy, the proposed EPRC model performed 10.81 % better compared to the other multi-target models considered in this study. It is also noticed that the forecasting results have a direct impact on the workload distribution, where the proposed model decreases the total workload by approximately 25 %. Besides, the result shows the efficient workload distribution provided by the proposed framework can reduce the average patients' waiting time by 8.17 %.


Assuntos
Programas Nacionais de Saúde , Alocação de Recursos , Idoso , Humanos , Canadá , Aprendizado de Máquina , Carga de Trabalho
18.
BMJ Open ; 12(12): e062878, 2022 12 12.
Artigo em Inglês | MEDLINE | ID: mdl-36523243

RESUMO

INTRODUCTION: Clinicians that care for hospitalised patients face unprecedented work conditions with exposure to highly infectious disease, exceedingly high patient numbers, and unpredictable work demands, all of which have resulted in increases in stress and burnout. Preliminary studies suggest that increasing workloads negatively affect inpatient clinician well-being and may negatively affect job performance; yet high workloads may be prioritised secondary to financial drivers or from workforce shortages. Despite this, the correlation between workload and these negative outcomes has not been fully quantified. Additionally, there are no clear measures for inpatient clinician workload and no standards to define ideal workloads. Using the protocol described here, we will perform a scoping review of the literature to generate a comprehensive understanding of how clinician workload of medical patients is currently defined, measured in clinical settings and its impact on the workforce, patients and institutional outcomes. METHODS AND ANALYSIS: We will follow the methodology outlined by Joanna Briggs Institute and Arksey and O'Malley to conduct a comprehensive search of major electronic databases including Ovid Medline (PubMed), Embase (Embase.com), PsycINFO, ProQuest Dissertations and Google Scholar. All relevant published peer-reviewed and dissertaion grey literature will be included. Data will be extracted using a standardised form to capture key article information. Results will be presented in a descriptive narrative format. ETHICS AND DISSEMINATION: This review does not require ethics approval though all included studies will be screened to ensure appropriate approval. The synthesis of this literature will provide a better understanding of the current state of work for inpatient clinicians, associated outcomes, and will identify gaps in the literature. These findings will be used in conjunction with an expert Delphi panel to identify measures of inpatient clinician workload to then guide the development of a novel workforce mobile application to actively track clinician work. We aim to lay the groundwork for future workforce studies to understand the optimal workloads that drive key outcomes for clinicians, patients and institutions.


Assuntos
Pacientes Internados , Carga de Trabalho , Humanos , Projetos de Pesquisa , Recursos Humanos , Revisão por Pares , Literatura de Revisão como Assunto
19.
Artigo em Inglês | MEDLINE | ID: mdl-36498046

RESUMO

Waste management workers experience high stress and physical strain in their work environment, but very little empirical evidence supports effective health management practices for waste management workers. Hence, this study investigated the effects of worker characteristics and biometric indices on workers' physical and psychological loads during waste-handling operations. A biometric measurement system was installed in an industrial waste management facility in Japan to understand the actual working conditions of 29 workers in the facility. It comprised sensing wear for data collection and biometric sensors to measure heart rate (HR) and physical activity (PA) based on electrocardiogram signals. Multiple regression analysis was performed to evaluate significant relationships between the parameters. Although stress level is indicated by the ratio of low frequency (LF) to high frequency (HF) or high LF power in HR, the results showed that compared with workers who did not handle waste, those who did had lower PA and body surface temperature, higher stress, and lower HR variability parameters associated with higher psychological load. There were no significant differences in HR, heart rate interval (RRI), and workload. The psychological load of workers dealing directly with waste was high, regardless of their PA, whereas others had a low psychological load even with high PA. These findings suggest the need to promote sustainable work relationships and a quantitative understanding of harsh working conditions to improve work quality and reduce health hazards.


Assuntos
Saúde do Trabalhador , Gerenciamento de Resíduos , Humanos , Estudos Transversais , Carga de Trabalho , Frequência Cardíaca/fisiologia , Exercício Físico
20.
J Neural Eng ; 19(6)2022 12 08.
Artigo em Inglês | MEDLINE | ID: mdl-36541548

RESUMO

Objective. In the emerging field of neuroergonomics, mental workload assessment is one of the most important problems. Previous studies have made some progress on the relationship between task difficulties and mental workload, but how the mental schema, a reflection of the understanding and mastery degree of a task, affects mental workload has not been clearly discussed.Approach. There is emerging appreciation for the role of theta-gamma coupling (TGC) in high-level cognitive functions. Here, we attempt to further our understanding of how mental schema development and task difficulty had an impact on mental workload from the perspective of TGC. Specifically, the variation of TGC coupling strength and coupling pattern was estimated with different test orders and task difficulties performed by 51 students in a ten-day simulated quadrotor unmanned aerial vehicle flight training and test tasks.Main results. During the training, TGC increased with mental schema development. For the test tasks, TGC did not change with increasing task difficulty before the operator formed a mental schema but decreased with the increasing mental workload after the formation of the mental schema.Significance. Our results suggest that TGC was a robust indicator of mental schema development and could be biased by task difficulty. In conclusion, TGC can be a promising measure of mental workload, but only for experienced operators.


Assuntos
Cognição , Carga de Trabalho , Humanos , Carga de Trabalho/psicologia , Eletroencefalografia
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