Temat: obciążenie fizyczne - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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Skocz do pozycji: 2.

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

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Skocz do pozycji: 3.

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

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Skocz do pozycji: 4.

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

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