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Wyszukujesz frazę "extensor muscle" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Disbalance and fatigue of the spinal extensors as one of the causes of the overload disease of the lumbar spine
Autorzy:
Zyznawska, Joanna
Frankowski, Grzegorz
Wodka-Natkaniec, Ewa
Kołomańska, Daria
Boczoń, Kamila
Kulesa-Mrowiecka, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/307233.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
zmęczenie
SEMG
zaburzenia równowagi
fatigue
sEMG
muscular disbalance
extensor muscle
overload disease
Opis:
The aim of the study was to find out whether among young active people – the future healthcare professionals – there is a risk of developing lumbar spine overload disease depending on the occurrence of the disbalance of paravertebral muscles and to assess the fatigue of the examined muscles depending on the body position during the work. Methods: The study involved 50 randomly selected students of physiotherapy and emergency medical services of a mean age of 21 years. The surface electromyography (sEMG) was used to measure the activity level of spinal extensors of the cervical and lumbar spine. The statistical analysis of the results was made using the RStudio software. Results: Study shows that the majority of the examined students had a slight asymmetry between the bioelectric activity of the right- and left-side dorsal extensor bands, both in the cervical and lumbar sections (right side 118.6 Hz / left side 115.7 Hz / extension and 98.6 Hz / 95.5 Hz /flexion). Depending on the position, significant fatigue in the examined muscles was found ( p < 0.05). Conclusions: The experiment showed a slight disbalance in the average bioelectromyographic activity in the area of spinal extensors during their symmetrical work. This can be the basis for the development of the overload disease in the weaker muscle parts, which generate more fatigue during the activity. It is worth to carry out similar tests in a much greater group, taking the longer-lasting muscular effort into account.
Źródło:
Acta of Bioengineering and Biomechanics; 2019, 21, 3; 119-125
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of the Influence of Muscle Type and Muscle Force Level on Individual Frequency Bands of the EMG Power Spectrum
Autorzy:
Bartuzi, P.
Roman-Liu, D.
Tokarski, T.
Powiązania:
https://bibliotekanauki.pl/articles/90164.pdf
Data publikacji:
2007
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
EMG power spectrum
upper limb
muscle type
extensor digitorum
palmaris longus
biceps brachii
Opis:
The aim of this study was to analyse the electromyographic (EMG) power spectrum indicating differences in the frequency bands of the spectrum resulting from differences in muscle type and force level for the extensor digitorum (ED), palmaris longus (PL) and biceps brachii (BB) muscles. The study was performed on 12 young men as 2 tests different in terms of the type of exerted force (30, 15 and 5% MVC, maximum voluntary contraction). The parameters of the EMG power spectrum were obtained as a result of a division of the EMG power spectrum into ranges determined by border frequencies. The results suggest that (a) frequency bands contained in the 30–80 Hz range and over the frequency of 300 Hz depend on muscle force, and (b) the power spectrum in the frequency range of up to 40 Hz and 60–300 Hz indicates muscle type.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2007, 13, 3; 241-254
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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