Background: Ergonomic behaviors play a crucial role in preventing work-related musculoskeletal disorders (WMSDs). To measure these behaviors, this research aimed to develop and evaluate an ergonomic behaviors tool (EBET) based on the Social Cognitive Theory (SCT) among women workers on assembly lines (WwAL).
Methods: The study was conducted from December 2022 to January 2023 with a focus on the psychometric assessment of EBET. Initially, a literature review and interviews were carried out to identify crucial concepts and primary items. The questionnaire's validity was evaluated using the Content Validity Ratio (CVR) and the Content Validity Index (CVI). To determine the domains of the tool, construct validity was examined by administering the items to 270 eligible women. The reliability of the tool was assessed using McDonald's Omega coefficient.
Results: From a total of 67 primary items, 50 were confirmed. The study demonstrated good validity with CVR = 0.92 and CVI = 0.97, along with reliable results indicated by McDonald's Omega coefficient of 0.74. The exploratory factor analysis (EFA) revealed ten distinct dimensions: outcome expectations, outcome expectancies, normative beliefs, perceived barriers, social support, observational learning, reinforcement, behavioral skills, self-efficacy, and intention. Together, these dimensions accounted for 66.25% of the variance in the data. Additionally, the confirmatory factor analysis results supported the presence of these ten constructs and demonstrated a satisfactory fit.
Conclusions: EBET is a dependable and valid instrument for evaluating the ergonomic behaviors of workers, utilizing the principles of SCT. Researchers can employ EBET to gather data and implement suitable training interventions to enhance ergonomic behavior among WwAL. However, it is crucial to recognize that EBET may not encompass all facets of ergonomic behaviors. Therefore, it is imperative for future research to prioritize the evaluation of EBET's suitability among diverse worker populations and to consider additional dimensions of ergonomics to ensure its wider applicability and effectiveness.
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http://dx.doi.org/10.1186/s12889-024-18738-w | DOI Listing |
Aerosp Med Hum Perform
January 2025
Background: Mission Controllers (MCs) are the main point of contact for space crews and are vital for successful human spaceflight. On a mission to Mars, there will be as long as 22-min one-way communication delays between the ground and the crew, causing major changes to current communication infrastructures.
Methods: This exploratory study assessed the impact of a 20-min one-way communication delay on MCs' task performance, workload, and stress levels under nominal and off-nominal conditions, conducted during a 21-d analog mission.
Sci Rep
January 2025
Key Laboratory of Wood Material Science and Application (Beijing Forestry University), Ministry of Education, Beijing, 100083, China.
The tendency toward the aesthetic preference affects an individual's intention to purchase furniture. Color and form are two fundamental elements of furniture appearance. However, there is a significant lack of human-computer interaction research on the aesthetic evaluation of furniture with various colors and forms, necessitating a comprehensive study to provide theoretical and empirical support to furniture designers and businesses.
View Article and Find Full Text PDFErgonomics
January 2025
Human Factors Research Group, University of Nottingham, University Park, Nottingham, United Kingdom.
In a novel, on-road study, using a 'Ghost Driver' to emulate an automated vehicle (AV), we captured over 10 hours of video (n = 520) and 64 survey responses documenting the behaviour and attitudes of pedestrians in response to the AV. Three prototype external human-machine interfaces (eHMIs) described the AV's behaviour, awareness and intention using elements of anthropomorphism: High (human face), Low (car motif), Abstract (partial representation of human features that lacked precise visual reference); these were evaluated against a (no eHMI) baseline. Despite many pedestrians reporting that they still relied on vehicular cues to negotiate their crossing, there was a desire/expectation expressed for explicit communication with future AVs.
View Article and Find Full Text PDFBMC Neurol
January 2025
Real World Solutions, IQVIA, 2400 Ellis Road, Durham, NC, 27703, USA.
Background: To evaluate the overall satisfaction, device usability, and injection experience of MS patients self-administering ofatumumab using the Sensoready autoinjector device in the United States (US).
Methods: This US-based, cross-sectional survey study included patients with MS (≥ 18 years) who self-administered ofatumumab using the Sensoready device within the previous 12 months of the survey. Eligible patients were administered a 30-item de novo questionnaire that focused on overall device satisfaction, device usability, convenience/flexibility for travel with the device, user confidence, injection experience, and time to administer the injection.
Cureus
December 2024
School of Allied Health Sciences, Manav Rachna International Institute of Research and Studies, Faridabad, IND.
Introduction: Sleep deprivation (SD), stemming from a myriad of aetiologies, is a prevalent health condition frequently overlooked. It typically impairs memory consolidation and synaptic plasticity, potentially through neuroinflammatory mechanisms and adenosinergic signalling. It is still unclear whether the adenosine A1 receptor (A1R) modulates SD-induced neurological deficits in the hippocampus.
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