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Wyświetlanie 1-13 z 13
Tytuł:
New Equipment to Lighten the Work Load of Construction Workers
Autorzy:
Kaukiainen, A.
Sillanpaa, J.
Lappalainen, J.
Viljanen, M.
Nyberg, M.
Powiązania:
https://bibliotekanauki.pl/articles/90392.pdf
Data publikacji:
2002
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
ergonomics
construction equipment
work methods
ergonomia
obciążenie fizyczne
sprzęt budowlany
budownictwo
zagrożenia zawodowe
obciążenie pracą
Opis:
The objective of this study was to determine whether the 4 pieces of equipment for cutting moulding, cutting reinforcement rods, carrying carpet rolls, and fitting drain pipes can lighten the work load of construction work. The results indicate that the effect of using the new ergonomically designed equipment was positive. The cutter for reinforcement rods proved to be useful, bent back postures decreased by 11%. The carrying of carpet rolls became less loading on the lower and upper extremities. According to the men the work load was lower in fitting drain pipes, especially on the lower extremities and in the neck and shoulder region. The conclusion was reached that work load can be decreased with well-planned equipment, but more attention should be given to personal work methods and habits.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2002, 8, 2; 209-224
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Upper Limb Load as a Function of Repetitive Task Parameters: Part 2 - An Experimental Study
Autorzy:
Roman-Liu, D.
Tokarski, T.
Powiązania:
https://bibliotekanauki.pl/articles/90499.pdf
Data publikacji:
2005
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
electromyography
upper limb
handgrip force
cycle load
praca powtarzalna
obciążenie fizyczne
kończyna górna
siła mięśni
elektromiografia
obciążenie pracą
Opis:
The aim of the study was to compare the theoretical indicator of upper limb load with the physiological indicator of musculoskeletal load, which is present while performing a repetitive task (a normalized electromyography [EMG] amplitude recorded from the muscles of the upper limb involved in the performed task). In an experimental study of a repetitive task, the EMG signal from 5 main muscles of the shoulder girdle, arm and forearm was registered: extensor carpi radialis longus, flexor carpi ulnaris, deltoideus anterior, biceps brachii caput breve and trapezius descendent. The results of the study showed a strong correlation between the theoretical indicator (Integrated Cycle Load) and the physiological indicator (root mean square of a normalized EMG amplitude from the 5 muscles). This proves that the developed theoretical indicator can be accepted as an indicator of upper limb musculoskeletal load during a work task.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2005, 11, 1; 103-112
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of the Workload of Underground Trammers in the Ranigang Coal Field Area of West Bengal, India
Autorzy:
Dey, N.C.
Samanta, A.
Saha, R.
Powiązania:
https://bibliotekanauki.pl/articles/90014.pdf
Data publikacji:
2006
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
physiological workload
underground trammer
coal mine
aerobic capacity
wydobycie węgla
procesy produkcyjne
obciążenie fizyczne
górnictwo podziemne
pracownik
Indie
obciążenie pracą
Opis:
Thirty healthy trammers were examined in underground haulage mines during their normal activity. Physiological strain in terms of heart rate (HR) varied between 101.6 and 104.7 beats/min with mean net cardiac cost of 33.06 and 34.06 beats/min for younger and older groups respectively. The average relative cardiac cost was lower for younger subjects than for older ones. Oxygen consumption (VO2) was measured with an Oxylog-II machine (UK); subsequently values were estimated. Maximum aerobic capacity was estimated with an indirect method following a standard step test protocol. The responses revealed that the average VO2 during the activity was 0.75 and 0.8 L/min, which corresponded to energy expenditure (EE) of 3.8 and 3.97 Kcal/min for younger and older subjects respectively. The workload in terms of HR and EE was moderate, whereas the aerobic strain experienced by aged workers was above the acceptable level.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2006, 12, 4; 399-407
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Upper Limb Load as a Function of Repetitive Task Parameters: Part 1 - A Model of Upper Limb Load
Autorzy:
Roman-Liu, D.
Powiązania:
https://bibliotekanauki.pl/articles/90123.pdf
Data publikacji:
2005
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
external load
upper limb
handgrip force
cycle work
repetitive task parameters
praca powtarzalna
obciążenie fizyczne
kończyna górna
siła mięśni
obciążenie pracą
Opis:
The aim of the study was to develop a theoretical indicator of upper limb musculoskeletal load based on repetitive task parameters. As such the dimensionless parameter, Integrated Cycle Load (ICL) was accepted. It expresses upper limb load which occurs during 1 cycle. The indicator is based on a model of a repetitive task, which consists of a model of the upper limb, a model of basic types of upper limb forces and a model of parameters of a repetitive task such as length of the cycle, length of periods of the cycle and external force exerted during each of the periods of the cycle. Calculations of the ICL parameter were performed for 12 different variants of external load characterized by different values of repetitive task parameters. A comparison of ICL, which expresses external load with a physiological indicator of upper limb load, is presented in Part 2 of the paper.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2005, 11, 1; 93-102
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:
Can Nurses Be Employed in 12-Hour Shift Systems?
Autorzy:
Makowiec-Dąbrowska, T.
Krawczyk-Adamus, P.
Sprusińska, E.
Jóźwiak, Z. W.
Powiązania:
https://bibliotekanauki.pl/articles/90416.pdf
Data publikacji:
2000
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
shift work
12-hr work system
Physical Workload (PWL)
work stress
praca zmianowa
stres w pracy
obciążenie fizyczne
Opis:
Nurses are often obliged to work in a 12-hr shift work system. We have decided to check whether such a working system constitutes an excessive load for nurses. On the basis of a questionnaire survey among nurses working in an 8-hr daytime shift system (169 nurses) and in a 12-hr shift (536 nurses), the amount of physical workload, work stress, and after-work activities were compared. Data analysis has shown that a 12-hr shift system is characterized by less significant physical workload but greater mental load. The nurses working in a 2-shift system were more tired after work, but they could spend more time on leisure activities and do housework. The data suggest that there are no significant contraindications for nurses to work in a 2-shift system.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2000, 6, 3; 393-403
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Evaluation of the NIOSH Lifting Equation: A Psychophysical and Biomechanical Investigation
Autorzy:
Elfeituri, F. E.
Taboun, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/90012.pdf
Data publikacji:
2002
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
NIOSH lifting equation
recommended weight limit
asymmetry multiplier
lifting index
horizontal multiplier
siła
obciążenie fizyczne
wydatek energetyczny
NIOSH
podnoszenie
Opis:
Using the results of psychophysical and biomechanical experiments, NIOSH (National Institute for Occupational Safety and Health) Recommended Weight Limit (RWL), the Lifting Index (LI), the form of the asymmetry multiplier, and the criterion for compression force were investigated. Analysis of the results indicated a significant difference between the NIOSH RWL and the reported Maximum Acceptable Weight of Lift (MAWL). Contrary to the NIOSH lifting equation, the form of the asymmetry multiplier was found to be non-linear. The overall average of peak compression force on the L5/S1 was 3685 N. Fifty-eight percent of all compression forces reported in the biomechanical experiment were found to exceed the suggested 3400 N set by NIOSH guidelines. These results support previous research findings on the validity of NIOSH guidelines.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2002, 8, 2; 243-258
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combined Effects of Physical Demands and Shift Working on Low Back Disorders Among Nursing Personnel
Autorzy:
Raeisi, S.
Namvar, M.
Golabadi, M.
Attarchi, M.
Powiązania:
https://bibliotekanauki.pl/articles/89824.pdf
Data publikacji:
2014
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
low back pain
nurses
musculoskeletal pain
shift work
personel pielęgniarski
nerwoból okolicy grzbietowej
choroby narządów ruchu
praca zmianowa
obciążenie fizyczne
Opis:
The aim of this study was to investigate the synergistic effects of physical demands and shift working on low back disorders (LBDs) among nursing personnel. The study used 2 questionnaires: a self-administered questionnaire composed of parts of Nordic musculoskeletal questionnaire to assess LBDs and job content questionnaire to assess physical demands. The participants were divided into 4 groups: from group 1 (low physical demands day workers) to group 4 (high physical demands shift workers). In regression analysis, high physical demands were associated with the prevalence of LBDs independently (OR 4.4, 95% CI [2.40, 8.00] and p < .05), but there was no association between shift working and LBDs (p > .05). Odds ratio in high physical demands shift workers was 9.33 compared to the reference group (p < .001). Calculated synergistic index was 7.37. Simultaneous impacts of shift working and high physical demands may increase the prevalence of LBDs among nursing personnel.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2014, 20, 1; 159-166
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Driver Workload Response to In-Vehicle Device Operations
Autorzy:
Jerome, C. J.
Ganey, H. C. N.
Mouloua, M.
Hancock, P. A.
Powiązania:
https://bibliotekanauki.pl/articles/91075.pdf
Data publikacji:
2002
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
driver distraction
telematics
workload
cellular phones
obciążenie fizyczne
telefonia komórkowa
fizjologia pracy
kierowcy i maszyniści
psychologia pracy
radio
systemy nawigacji
Opis:
A central concern of Intelligent Transportation Systems (ITS) is the effect of in-vehicle devices (e.g., cell phones, navigation systems, radios, etc.) on driver performance and safety. As diverse and innovative technologies are designed and implemented for in-vehicle use, questions regarding the presence and use of these devices assume progressively greater importance. Further concerns for advanced driver training require us to develop and validate reliable and effective procedures for assessing such effects. This work examines a number of candidate procedures, in particular the evaluation of change in cognitive workload as a strategy by which such goals might be achieved.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2002, 8, 4; 539-546
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Job Level Risk Assessment Using Task Level Strain Index Scores: A Pilot Study
Autorzy:
Drinkaus, P.
Bloswick, D. S.
Sesek, R.
Mann, C.
Bernard, T.
Powiązania:
https://bibliotekanauki.pl/articles/90342.pdf
Data publikacji:
2005
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
Strain Index
Distal Upper Extremity (DUE)
multi-task risk assessment
ocena ryzyka zawodowego
choroby narządów ruchu
obciążenie fizyczne
kończyna górna
siła mięśni
Opis:
This paper explores 2 methods of modifying the Strain Index (SI) to assess the ergonomic risk of multi-task jobs. Twenty-eight automotive jobs (15 cases and 13 controls) were studied. The first method is based on the maximum task SI score, and the second method is modeled on the NIOSH Composite Lifting Index (CLI) algorithm, named cumulative assessment of risk to the distal upper extremity (CARD). Significant odds ratios of 11 (CI 1.7–69) and 24 (CI 2.4–240) were obtained using the modified maximum task and CARD, respectively. This indicates that modification of the SI may be useful in determining the risk of distal upper extremity injury associated with a multi-task job.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2005, 11, 2; 141-152
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reasons for Applying Innovations for Scaffolding Work
Autorzy:
Jong, A. M.
Molen, H. v. d.
Vink, P.
Eikhout, S.
Koningsveld, E.
Powiązania:
https://bibliotekanauki.pl/articles/90714.pdf
Data publikacji:
2003
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
scaffolding work
innovations
participatory ergonomics
musculoskeletal problems
construction industry
choroby narządów ruchu
prace budowlane
praca na wysokości
ergonomia
praca mięśni
obciążenie fizyczne
Opis:
In this paper reasons for applying and for not applying technical and organizational innovations in scaffolding work are studied. In a participatory ergonomic approach these innovations were developed to reduce problems concerning physical load of scaffolders. In this study reasons for the adoption of the innovations in the scaffolding sector are evaluated in 2 studies, in 48 companies. More than half of the scaffolding sector in the Netherlands adopted the innovations. Reasons for applying innovations concerned improvement of work and health and satisfaction with usage. The reason for not applying the innovations concerned specific situations, such as offshore work, in which innovations were not applicable.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2003, 9, 2; 161-175
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Relationships Between Biomechanical and Postural Stresses, Musculoskeletal Injury Rates, and Perceived Body Discomfort Experienced by Industrial Workers: A Field Study
Autorzy:
Stuebbe, P.
Genaidy, A.
Karwowski, W.
Kwon, Y. G.
Alhemood, A.
Powiązania:
https://bibliotekanauki.pl/articles/90964.pdf
Data publikacji:
2002
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
musculosceletal injury
ergonomics
postural stress
cumulative biomechanical stress
czynniki ryzyka
zagrożenia zdrowia
fizjologia pracy
obciążenie fizyczne
stres
ergonomia
choroby narządów ruchu
pozycja przy pracy
dyskomfort
Opis:
A combination of archival, subjective, and observational field data collection methods were used to investigate the relationship between biomechanical and postural stresses, and the resulting physical strain experienced by industrial workers of a packaging plant. Assessment of physical strain was based on the number and incidence rate of Occupational Safety and Health Administration (OSHA)-reportable injuries that were recorded over a period of 27 months, and based on the self-reported ratings of perceived body discomfort. Both the biomechanical and postural stresses correlated with the musculoskeletal injury rate. The results illustrate the usefulness of postural and biomechanical analyses for assessing the risk of injury in industry.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2002, 8, 2; 259-280
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Job Level Risk Assessment Using Task Level ACGIH Hand Activity Level TLV Scores: A Pilot Study
Autorzy:
Drinkaus, P.
Sesek, R.
Bloswick, D. S.
Mann, C.
Bernard, T.
Powiązania:
https://bibliotekanauki.pl/articles/90591.pdf
Data publikacji:
2005
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
HAL
TLV
hand activity level
multitask
work-related risk assessment
ocena ryzyka zawodowego
choroby narządów ruchu
obciążenie fizyczne
kończyna górna
siła mięśni
ocena sprawności fizycznej
Opis:
Existing upper extremity musculoskeletal disorder analytical tools are primarily intended for single or monotask jobs. However, many jobs contain more than 1 task and some include job rotation. This case/control study investigates methods of modifying an existing tool, the American Conference of Governmental Industrial Hygienists (ACGIH) Hand Activity Level (HAL) Threshold Limit Value (TLV), to assess the upper extremity risk of multi-task jobs. Various methods of combining the task differences and ratios into a job level assessment were explored. Two methods returned significant odds ratios, (p < .05) of 18.0 (95% CI 1.8–172) and 12.0 (95% CI 1.2–120). These results indicate that a modified ACGIH HAL TLV may provide insight into the workrelated risk of multi-task jobs. Further research is needed to optimize this process.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2005, 11, 3; 263-281
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-13 z 13

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