Usporedba metoda analize površinskih mioelektričkih signala tijekom dinamičkog umaranja

Ostojić, Saša

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scientific master's theses

Usporedba metoda analize površinskih mioelektričkih signala tijekom dinamičkog umaranja

Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2005. urn:nbn:hr:168:236543

Ostojić, Saša

University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Electronic Systems and Information Processing

Cite this document

APA 6th Edition

Ostojić, S. (2005). Usporedba metoda analize površinskih mioelektričkih signala tijekom dinamičkog umaranja (Scientific master's theses). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:236543

MLA 8th Edition

Ostojić, Saša. "Usporedba metoda analize površinskih mioelektričkih signala tijekom dinamičkog umaranja." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 2005. https://urn.nsk.hr/urn:nbn:hr:168:236543

Chicago 17th Edition

Harvard

Ostojić, S. (2005). 'Usporedba metoda analize površinskih mioelektričkih signala tijekom dinamičkog umaranja', Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 05 October 2023, https://urn.nsk.hr/urn:nbn:hr:168:236543

Vancouver

Ostojić S. Usporedba metoda analize površinskih mioelektričkih signala tijekom dinamičkog umaranja [Scientific master's theses]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2005 [cited 2023 October 05] Available at: https://urn.nsk.hr/urn:nbn:hr:168:236543

IEEE

S. Ostojić, "Usporedba metoda analize površinskih mioelektričkih signala tijekom dinamičkog umaranja", Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2005. Available at: https://urn.nsk.hr/urn:nbn:hr:168:236543

Cite this item: https://urn.nsk.hr/urn:nbn:hr:168:236543

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Metadata

Title	Usporedba metoda analize površinskih mioelektričkih signala tijekom dinamičkog umaranja
Author	Saša Ostojić
Mentor	Mario Cifrek (mentor)
Committee member	Stanko Tonković (predsjednik povjerenstva)
Committee member	Mario Cifrek (član povjerenstva)
Committee member	Vladimir Medved (član povjerenstva)
Granter	University of Zagreb Faculty of Electrical Engineering and Computing (Department of Electronic Systems and Information Processing) Zagreb
Defense date and country	2005-12-05, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Electrical Engineering Electronics
Universal decimal classification (UDC)	621.3 - Electrical engineering
Abstract	U radu su uspoređene tri metode analize mioelektričkih signala tijekom dinamičkog umaranja. Korištene su metode analize temeljene na skalogramu, spektrogramu i Choi-Williams distribuciji. Za potrebe usporedbe razvijen je model površinskog mioelektričkog signala dinamičkih kontrakcija temeljen na superpoziciji jednotonskih kutno moduliranih signala. Analiza i usporedba provedena je i na izmjerenim površinskim mioelektričkim signalima snimljenim u uvjetima voljnih kontrakcija. Frekvencija medijana spektra snage odabrana je za praćenje umora mišića i definiciju modela. Usporedba metoda analize na sintetiziranom signalu pokazala je značajnu zavisnost rezultata analize o izboru metode analize i parametara analize. Obrada izmjerenih signala potvrdila je zaključak donesen na temelju analize sintetiziranih signala, te ukazala na potreban oprez prilikom interpretacije rezultata. Rezultati rada mogu poslužiti za daljnja istraživanja utjecaja parametara analize, kao i razvoj općeg modela površinskog mioelektričkog signala tijekom umarajućih dinamičkih kontrakcija.
Abstract (english)	In this work, three methods have been applied for analysis of myoelectrical signals during fatiguing dynamic contractions. Methods of analyisis applied: scalogram based, spectrogram based and Choi-Williams distribution based method. Model of surface myoelectrical signals during fatiguing contractions was developed for the purpose of comparison. The model is based on superposition of single tone angular modulated signals. Analysis and comparison was performed on both, sinthesized and measured surface myoelectrical signals of voluntary dynamic contractions. Median frequency of the power spectrum was choosen for tracking muscle fatigue and for model definition. When analyis is applied on sinthesized signal, choice of the method and parameters of the applied method showed significant influence on the final results. Analysis of measured myoelectric signals confirmed this conclusion and pointed out the problem of result interpretation. Presented results can be used for further investigation of analysis parameter influence on results, as well as for development of common surface electromyographic model during fatiguing dynamic contracions.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:168:236543
Study programme	Title: Postgraduate master programme in electrical engineering Study programme type: university Study level: postgraduate Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
Type of resource	Text
File origin	Born digital
Access conditions	Closed access
Terms of use
Repository	FER Repository
Created on	2019-07-09 13:39:56