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    Wyświetlanie 1-8 z 8
    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:
    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:
    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 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:
    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:
    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:
    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:
    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
      Wyświetlanie 1-8 z 8

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