Autor: Roman, D. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Assessment of the Musculoskeletal Load of the Trapezius and Deltoid Muscles During Hand Activity
Autorzy:: Roman-Liu, D.
Tokarski, T.
Kamińska, J.
Powiązania:: https://bibliotekanauki.pl/articles/91179.pdf
Data publikacji:: 2001
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: electromyography
muscle fatigue
precision work
hand activities
choroby narządów ruchu
fizjologia mięśni
praca mięśni
ręka
Opis:: The purpose of the study was to analyse the influence of the precision of a task on tension and fatigue of the trapezius and deltoid muscles. Ten young men took part in experiments. Different levels of force and different frequencies of pressing a button defined the precision of the task. Surface electromyography (EMG) was used. Muscle tension and fatigue were reflected by 2 parameters of the EMG signal: the Root Mean Square amplitude related to the maximum value and changes in the Median Power Frequency. The results showed that hand activities influence the descending part of the trapezius muscle and do not influence the deltoid muscle, and that the precision of work can influence the examined muscles of the arm and shoulder even during work in which only the hand is involved in a performed task.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2001, 7, 2; 179-193
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The Influence of Age and Type of Force on Muscle Strength Capabilities in Women
Autorzy:: Tokarski, T.
Roman-Liu, D.
Kamińska, J.
Powiązania:: https://bibliotekanauki.pl/articles/90634.pdf
Data publikacji:: 2012
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: muscle
strength
ageing
women
Opis:: The aim of this study was to assess handgrip and 5 other types of force in 52 women and to determine if handgrip force reflected general upper limb force capabilities correlated with age. The women were divided into subgroups according to age: 20–25, 45–50 and 55–65 years. Maximum forces of the right upper limb were measured in 6 types of force activities. In most tests the values of force showed statistically significant differences between the 20–25 group and the groups aged 45–50 and 55–64 years. The results did not show any differences related to age or to force activities that involved the small muscles of the forearms and hands. Thus handgrip force cannot always be considered an indicator of total force capabilities.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2012, 18, 1; 47-57
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Differences in Lumbar Spine Load Due to Posture and Upper Limb External Load
Autorzy:: Kamińska, J.
Roman-Liu, D.
Zagrajek, T.
Borkowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/89864.pdf
Data publikacji:: 2010
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: finite element model
muscle co-operation
spine load
lumbar spine
Opis:: As the lumbar region of the spine is particularly predisposed to musculoskeletal disorders, the aim of this article was to assess lumbar spine load on the basis of an accurate model of this part of the body. The model was developed with the finite element method and the energy criterion for optimising muscle work. Computer calculations confirmed that stresses and compression forces in intervertebral discs increased with an increase in the load force and that they were significantly larger in the bent forwards posture than in the erect posture. This result clearly shows that lifting light objects and the erect posture are important elements in minimising spine load.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2010, 16, 4; 421-430
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

Artykuł

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