Documents physical fatigue 8 results

"Objective:
To understand impacts of social, behavioral and physical factors on well-being of office workstation users during COVID-19 work from home (WFH).
Methods:
A questionnaire was deployed from April 24 to June 11, 2020 and 988 responses were valid. Linear regression, multinomial logistic regression and chi-square tests were used to understand factors associated with overall physical and mental health statuses and number of new physical and mental health issues.
Results:
Decreased overall physical and mental well-being after WFH were associated with physical exercise, food intake, communication with coworkers, children at home, distractions while working, adjusted work hours, workstation set-up and satisfaction with workspace indoor environmental factors.
Conclusion:
This study highlights factors that impact workers' physical and mental health well-being while WFH and provides a foundation for considering how to best support a positive WFH experience."

"Selon l'enquête SUMER 2003, 32% des salariés sont exposés à des situations fatigantes : fréquents déplacements à pied, position debout prolongée, gestes répétitifs à cadence élevée. Vingt et un pour cent des salariés sont confrontés à des postures pénibles : à genoux, les bras en l'air ou dans une position en torsion. Enfin, 10% des salariés sont exposés à des contraintes cervicales. Au total, près d'un salarié sur deux subit au moins une contrainte posturale ou articulaire qui peut être jugée lourde. Les postures pénibles concernent en premier lieu les ouvriers de type artisanal, mais également les femmes employées dans le commerce ou les services aux particuliers. Les postures fatigantes touchent plutôt les ouvriers de type industriel. Les ouvrières de l'industrie sont particulièrement concernées par les gestes répétitifs, les femmes employées et cadres par les contraintes cervicales."

"The extent of intraspinal forces under whole-body vibration (WBV) depends on several factors like multiple excitations of different body parts, stature and posture. The effects of these forces are determined by individual tolerances. Hence, there is no direct and simple relationship between WBV and health risk of the lumbar spine. The current evaluation methods with respect to health cover only part of the WBV input to the human body and do not consider all associated factors. A set of 50 finite element (FE) models was developed, based on human anatomy and adapted to different typical postures of European drivers and their anthropometric parameters. Three-dimensional matrices of transfer functions simulate these models and permit a practicable routine computation by a Matlab program with graphical user interface to predict intraspinal compressive and shear forces caused by WBV-input in x-, y- and z-directions at the seat, backrest, feet and hands, measured on mobile machinery. The effects of posture and stature on predicted WBV-related internal loads are demonstrated, for example, of numerous WBV-measurements under field conditions. The predicted static and vibration-related peak-to-peak dynamic compressive forces are processed with a method of risk assessment based on cumulative fatigue failure and implemented as a Matlab-program. The resulting risk factors of the new assessment method are compared with existing evaluation procedures of ISO 2631-1 and ISO 2631-5. They reveal significant differences."

"La implantación de oficinas de llamadas, más conocidas como centros de llamadas, es muy reciente en España, sin embargo se ha desarrollado de manera importante en los últimos años. Además todo apunta, al igual que en otros países, a una creciente expansión. Estos centros de contacto con los clientes son una parte importante del sector de las telecomunicaciones. Su abanico de actividades actualmente incluye las ventas, los servicios, la información y la gestión de reclamaciones. Sin duda, se verán ampliadas en un futuro próximo. La tarea que realiza un teleoperador consiste en: emisión y recepción de llamadas, con una velocidad de atención determinada, unos objetivos a cumplir en ellas, y unas exigencias de trato al cliente. En ocasiones este trabajo no se limita a la simple asistencia, sino que además debe retener al cliente, y asegurar no sólo su satisfacción sino también su consumo. ..."

"Virtual reality (VR) can induce side effects known as virtual reality-induced symptoms and effects (VRISE). To address this concern, we identify a literature-based listing of these factors thought to influence VRISE with a focus on office work use. Using those, we recommend guidelines for VRISE amelioration intended for virtual environment creators and users. We identify five VRISE risks, focusing on short-term symptoms with their short-term effects. Three overall factor categories are considered: individual, hardware, and software. Over 90 factors may influence VRISE frequency and severity. We identify guidelines for each factor to help reduce VR side effects. To better reflect our confidence in those guidelines, we graded each with a level of evidence rating. Common factors occasionally influence different forms of VRISE. This can lead to confusion in the literature. General guidelines for using VR at work involve worker adaptation, such as limiting immersion times to between 20 and 30 min. These regimens involve taking regular breaks. Extra care is required for workers with special needs, neurodiversity, and gerontechnological concerns. In addition to following our guidelines, stakeholders should be aware that current head-mounted displays and virtual environments can continue to induce VRISE. While no single existing method fully alleviates VRISE, workers' health and safety must be monitored and safeguarded when VR is used at work."