Naslov
A non-arbitrary definition of the analyzing interval of sEMG signal measured during sustained low back extension

Autori
Ostojić, Saša ; Srhoj-Egekher, Vedran ; Peharec, Stanislav ; Cifrek, Mario

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) / Skala, Karolj ; Koričić, Marko ; Galinac Grbac, Tihana ; Čičin-Šain, Marina ; Sruk, Vlado ; Ribarić, Slobodan ; Groš, Stjepan ; Vrdoljak, Boris ; Mauher, Mladen ; Tijan, Edvard ; Pale , Predrag ; Janjić, Matej - Opatija : Institute of Electrical and Electronics Engineers (IEEE), 2018, 0245-0249

ISBN
978-953-233-097-7

Skup
41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO 2018)

Mjesto i datum
Opatija, Hrvatska, 21.05.2018. - 25.05.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
biomedical signal processing ; surface electromyography ; low back extension ; low back pain ; static contractions

Sažetak
Recording of surface EMG signals over lower back muscles during sustained exercise protocols used for classification of different categories of low back pain subjects and healthy subjects are typically accompanied with measurement of kinematic parameters elaborating measurements per se and the interrelationship of surface EMG parameters and kinematic parameters. We propose an exercise protocol without measurement of kinematic parameters and examine the possibility to use spectral changes of the surface EMG signals during fatiguing static contractions in defining a time interval to be analyzed. The protocol was applied to fifteen subjects without low back pain and who were able to sustain long static contractions over 100 s. Variability of the slope of regression line that fits values of median frequency of the power spectral density function in a least-square sense was checked versus the duration of analyzed interval and start time selected. This study proposes that muscle contraction start time can be related to distinct spectral change of the surface EMG signal that are consequence of designed test protocol.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

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