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Wyświetlanie 1-12 z 12
Tytuł:
Sitting Comfort of Ergonomic Office Chairs—Developed Versus Intuitive Evaluation
Autorzy:
Mueller, G. F.
Hassenzahl, M.
Powiązania:
https://bibliotekanauki.pl/articles/90809.pdf
Data publikacji:
2010
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
sitting comfort
office chair
ergonomic chair layout
developed evaluation
intuitive evaluation
sensory awareness
Opis:
The sitting comfort of office chairs with different ergonomic layouts (inferior, superior) was examined. Fifty participants were randomly assigned to a 2 × 5 factorial experimental design with 2 different conditions of ergonomic chair layout (inferior or superior) and 5 different conditions of instruction to explore the chair. Four conditions were created to differentiate between various levels of perceptual awareness and processing of chair-related information (guided exploration and developed evaluation). In a 5th condition, participants remained uninstructed (free exploration and intuitive exploration). Under guided exploration, the participants’ perception of sitting comfort was in line with objective differences in the chair layout. Different conditions of guided exploration, however, did not influence the evaluations. Under free exploration, the participants’ perceptions did not match the ergonomic chair layout. In contrast to participants under guided exploration, they even rated the ergonomically inferior office chair more favourably than the ergonomically superior chair.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2010, 16, 3; 369-374
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Performance Assessment of Heat Resistant Fabrics Based on a New Thermal Wave Model of Skin Heat Transfer
Autorzy:
Zhu, F.
Zhang, W.
Song, G.
Powiązania:
https://bibliotekanauki.pl/articles/90033.pdf
Data publikacji:
2006
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
thermal performance
skin burn
skin simulant sensor
heat resistant fabrics
thermal wave skin model
ciepło
temperatura skóry
oparzenie
Opis:
A thermal wave skin model incorporating surface heat flux from a skin simulant sensor is developed to characterize the thermal performance of heat resistant fabrics covering the skin simulant sensor. Comparisons of time to 2nd-degree skin burn and temperature elevation of skin beneath a layer of fabric between the Pennes’ equation and the newly developed thermal wave skin model are performed in this research. Results of tolerance time from the Stoll criterion method are also compared with those from 2 skin models in a thermal protective performance calorimeter. It is concluded that the thermal properties of heat resistant fabrics can be characterized more precisely than previously.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2006, 12, 1; 43-51
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interaction of Physical and Mental Work
Autorzy:
Singh, S.
Aghazadeh, F.
Ray, T. G.
Powiązania:
https://bibliotekanauki.pl/articles/90541.pdf
Data publikacji:
2002
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
physical work
mental work
psychophysical methods
acceptable load limit
fatigue
praca a choroby
praca mięśni
praca umysłowa
obciążenie pracą umysłową
obciążenie fizyczne
zmęczenie
zmęczenie fizyczne
Opis:
The objective of the research was to determine the effect of mental load on the physical capacity of an individual. An experiment involving 9 combinations of lifting tasks, 1 lowering task, and 3 treadmill tasks was conducted. Heart rate was measured and maximum acceptable weight of lift was determined using the psychophysical method. A simple multiplication task was used as the mental load. The output variables were determined with and without the mental task. The results indicate that the individual’s physical capacity decreased with the mental task while lifting from floor to knuckle and shoulder to reach lifting heights.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2002, 8, 4; 451-463
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The School of Posture as a Postural Training Method for Paraíba Telecommunications Operators
Autorzy:
Cardia, M. C. G.
Masculo, F. S.
Powiązania:
https://bibliotekanauki.pl/articles/90082.pdf
Data publikacji:
2001
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
school of posture
training methodology
telecommunication workers
operatorzy telekomunikacyjni
kształcenie
Opis:
This work proposes to show the experience of posture training accomplished in the Paraíba State Telecommunication Company, using the knowledge of the Back School. The sample was composed of 12 operators, employees of the company, representing 31% of this population. The model applied in TELPA (Paraíba Telecommunication Company, Brazil) was based on the models of Sherbrooke, Canada, and of the School of Posture of Paraíba Federal University. Fifty-eight point four percent of participants showed a reduction of column pain, 25% improved the quality of the rest and the received training was considered enough for the learning of correct postures at work in 75% of the cases. The whole population approved of the training, and 83.3% of the cases considered that this training influenced their lives very positively.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2001, 7, 3; 363-370
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Health Risks From Exposure to Metal-Working Fluids in Machining and Grinding Operations
Autorzy:
Li, K.
Aghazadeh, F.
Hatipkarasulu, S.
Ray, T. G.
Powiązania:
https://bibliotekanauki.pl/articles/90609.pdf
Data publikacji:
2003
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
machining safety
cutting fluid hazards
occupational illnesses
occupational cancer
metal working
obróbka metali
obróbka skrawaniem
ocena ryzyka zawodowego
zagrożenia zdrowia
szkodliwe czynniki fizyczne
choroba zawodowa
nowotwory
Opis:
Metal-working fluids (MWFs) are used in machining and grinding operations to cool the tool and work, reduce the friction between the tool and work, improve the surface integrity of the work piece, and increase tool life and productivity. Health problems have been reported among workers exposed to MWFs, including incidences of respiratory, digestive and skin cancers, and increased rates of cough and phlegm. This paper reviews and discusses issues concerning health risks from exposure to MWFs in machining and grinding operations, the various factors that influence the degree of exposure, and control methods to reduce exposure to metal-working fluids.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2003, 9, 1; 75-95
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ergonomics and Work Organization: The Relationship Between Tayloristic Design and Workers’ Health in Banks and Credit Cards Companies
Autorzy:
Sznelwar, L. I.
Mascia, F. L.
Zilbovicius, M.
Arbix, G.
Powiązania:
https://bibliotekanauki.pl/articles/91022.pdf
Data publikacji:
1999
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
call center
ergonomic work analysis
taylorism
computerised system
work related musculoskeletal disorders
analiza pracy
układ mięśniowo-szkieletowy
ergonomia
organizacja pracy
Opis:
The discussion developed in this paper is based on the results of an ergonomic work analysis carried out with attendants at call centers. Some critical issues and difficulties, like working pace, inadequate tools and workstations, and software inadequacies were detected in working situations. Operator-customer interactions are presented, attempting to put in evidence working constraints, working conditions, and their connection with health problems. The main conclusion is that serving clients, especially when the job is to provide information, is not a simple task, as information is not always available in the computerized system and is completely fragmented. The scope of workers’ actions is very restricted and complicated and recurrent requests are redirected to others. Workers (individually or as groups) have limited possibilities to make adjustments to be able to give more adequate and personalized treatment to clients and, at the same time, to work in a less stressful environment. In periods of increased workload and work intensification, the situation is very much favorable to the incidence of health disorders, such as work related musculoskeletal disorders (WMSD) and others. Some suggestions to improve the work situation are discussed.
Źródło:
International Journal of Occupational Safety and Ergonomics; 1999, 5, 2; 291-301
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of an Ergonomic Intervention on Musculoskeletal, Psychosocial and Visual Strain of VDT Data Entry Work: The United States Part of the International Study
Autorzy:
Dainoff, M. J.
Cohen, B. G. F.
Dainoff, M. H.
Powiązania:
https://bibliotekanauki.pl/articles/90605.pdf
Data publikacji:
2005
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
ergonomic interventions
VDTs
office ergonomics
musculoskeletal disorders
visual strain
ergonomia
warunki pracy
praca biurowa
choroby narządów ruchu
stres
zagrożenie zdrowia
Opis:
The United States MEPS (musculoskeletal-eyestrain-psychosocial-stress) study consisted of 1 group of 28 female data entry operators. The intervention was in 3 parts: workstation redesign (including advanced ergonomic chairs, motorized adjustable workstations, advanced adjustable keyboards, adjustable copyholders, adjustable footrests, monitor support surfaces) and ergonomic training/coaching and corrective lenses. After the intervention, statistically significant reductions in physical signs (trigger points, neck and shoulder mobility), subjective reports of intensity and frequency of musculoskeletal pain, and subjective reports of visual problems were observed. Static load during the work sample, as assessed by experts, improved after the intervention as did measured postural angles of head and trunk and subjective assessment of users of ergonomic characteristics of the workplaces. For all of these measures, improvements observed 1 month after intervention were also observed in the 1-year follow-up. Trapezius load, as assessed by electromyography (EMG), decreased after intervention, but then increased in the follow-up. The increase was interpreted as a calibration problem.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2005, 11, 1; 49-63
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Cross-Country Comparison of Shortand Long-Term Effects of an Ergonomic Intervention on Musculoskeletal Discomfort, Eyestrain and Psychosocial Stress in VDT Operators: Selected Aspects of the International Project
Autorzy:
Horgen, G.
Aaras, A.
Dainoff, M. J.
Konarska, M.
Thoresen, M.
Cohen, B. G. F.
Powiązania:
https://bibliotekanauki.pl/articles/90036.pdf
Data publikacji:
2005
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
ergonomic stress
musculoskeletal stress
visual stress
work environment
computer work
Norwegia
ergonomia
warunki pracy
praca biurowa
współpraca międzynarodowa
choroby narządów ruchu
stres
komputer
pozycja przy pracy
zagrożenie zdrowia
środowisko pracy
Opis:
Three groups of data entry female visual display terminal (VDT) workers from Norway (n = 30), Poland (n =33) and the USA (n = 29) were compared. Before intervention, the Norwegian group reported more neck pain compared with the Polish group. The Polish group reported less shoulder pain than both the U.S. and the Norwegian groups. The clinical examination documented fewer symptoms and signs of musculoskeletal illness among the Polish participants compared with the Norwegian and the U.S. groups. After intervention, the Norwegian group reported a reduction in neck pain while the U.S. group reported a reduction in shoulder pain. The Polish group reported an increase in neck, shoulder and forearm pain at follow-up compared to after intervention. The Polish group recorded higher flexion of the upper arm at follow-up parallel with an increase of pain in the upper part of the body. Visual discomfort showed variable results in the 3 countries.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2005, 11, 1; 77-92
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strategies of International Cooperation in an International Project: Advantages and Pitfalls
Autorzy:
Dainoff, M. J.
Aaras, A.
Ro, O.
Cohen, B. G. F.
Powiązania:
https://bibliotekanauki.pl/articles/90972.pdf
Data publikacji:
2005
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
ergonomic interventions
multidisciplinary
multicultural
VDTs
office ergonomics
ergonomia
warunki pracy
praca biurowa
współpraca międzynarodowa
komputer
choroby narządów ruchu
stres
zagrożenia zdrowia
Opis:
The MEPS (musculoskeletal—eyestrain—psychosocial—stress) study involved an extensive degree of multidisciplinary and multicultural cooperation. The objective was to examine the effects of multiple ergonomic interventions on visual, musculoskeletal, postural, and psychosocial outcomes amongst operators of visual display terminals (VDTs). The inherent complexity of a comprehensive ergonomic investigation requires participation of researchers from a variety of disciplines, as well as comparisons among populations with different geographical and cultural backgrounds. The design and execution of the resulting research protocol presents a number of challenges. This paper discusses the advantages and pitfalls associated with multidisciplinary multinational cooperation. Advantages include the necessity for development of a common language and perspective providing a basis for future collaboration. Pitfalls include logistic and coordination difficulties associated with conducting standardized procedures in different locations, as well as the inherent potential for professional conflict. It is argued that such pitfalls ought to be understood and integrated into the project planning process.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2005, 11, 1; 3-8
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated Estimation of the Effect of Physical Factors on Human Functional State During Mental Work
Autorzy:
Suvorov, G. A.
Afanasieva, R. F.
Mikhailova, N. S.
Babayan, M. A.
Bobrov, A. F.
Sokolov, S. N.
Powiązania:
https://bibliotekanauki.pl/articles/90487.pdf
Data publikacji:
2001
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
integral estimation
noise
vibration
temperature
illumination
mental work
psychophysiologic responses
fizjologia
praca umysłowa
hałas
drgania
temperatura ciała
oświetlenie
organizm człowieka
Opis:
The purpose of this study was to develop a model for an integrated estimation of the functional state of the human organism (FSHO) and an integral estimation of physical factors (PF) for hygienic rating. Tests were performed twice with 3 men in 0.7-clo clothing during 4-hr mental work with 9 combinations of 4 PF: wideband noise (55–83 dB(A)), whole-body vibration (6 Hz, az =0.2–1.8 ms−2), air temperature (18–30 C), and illumination (1, 3, 5 lx). Thermoregulatory, cardiovascular, and psychophysiological reactions and temporary threshold of hearing (TTS2) shifts were studied. For the integral estimation of PF influence on FSHO the model F(y1, y2, ... ym) = f(x1, x2, ... xn) was used, relating both FSHO and PF sets. The most important physiological parameters in creating FSHO are defined and the contribution of individual parameters of FSHO and PF is found.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2001, 7, 2; 149-161
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of an Ergonomic Intervention on Musculoskeletal, Psychosocial and Visual Strain of VDT Entry Work: Organization and Methodology of the International Study
Autorzy:
Dainoff, M. J.
Aaras, A.
Horgen, G.
Konarska, M.
Larsen, S.
Thoresen, M.
Cohen, B. G. F.
Powiązania:
https://bibliotekanauki.pl/articles/90866.pdf
Data publikacji:
2005
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
ergonomic interventions
VDT
office ergonomics
multidisciplinary
ergonomia
praca biurowa
choroby narządów ruchu
warunki pracy
komputer
stres
zagrożenia zdrowia
współpraca międzynarodowa
Opis:
This special issue of the International Journal of Occupational Safety and Ergonomics (JOSE) reports the results from an extensive multinational and multidisciplinary collaborative investigation of the impacts on visual display terminal (VDT) work of musculoskeletal, visual, ergonomic, and psychosocial factors. For brevity, this effort has been referred to as the MEPS project musculoskeletal-eyestrain-psychosocial-stress). This paper lays out the basic methodological structure of the study. The study was conducted in 4 countries utilizing VDT data entry workers as the primary subject population. A battery of objective and subject assessment measures, including muscle load, visual function, physical and visual strain, postural, ergonomic and psychosocial factors, were assessed at 3 different points in time. A pre-test was given prior to an ergonomic intervention. Two posttests were given 1 month and 1 year after the ergonomic intervention.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2005, 11, 1; 9-23
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Perceptions of the Importance and Control of Professional Problems in the Clinical Setting
Autorzy:
Maupome, G.
Borges-Yanez, S. A.
Diez-de-Bonilla, F. J.
Pineda-Cruz, A.
Powiązania:
https://bibliotekanauki.pl/articles/91200.pdf
Data publikacji:
2001
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
stress
dental practice
dental students
burnout
usługi stomatologiczne
wypadki przy pracy
wypalenie zawodowe
czynnik psychiczny
stres
zagrożenia zawodowe
Opis:
The objective of this study was to identify the relative importance of culturally relevant professional problems and the degree of control over them, as perceived by dentists and dental students in Mexico City, Mexico. The dentists and students ranked 13 problems according to importance and then according to the perceived degree of control over each one. Novice clinicians were less secure about their ability to cope with the legal, financial, and clinical performance problems, whereas experienced clinicians were more concerned about occupational hazards and the dental market and culture. Both reported similar perceptions of their control of the problems. This preliminary information should support introducing into dental schools relevant practice-management courses, targeting continuing education efforts, and instituting professional counseling measures to meet the challenges posed by these problems.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2001, 7, 3; 247-262
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-12 z 12

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