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Analys av muskelaktivitet i underbenet vid gång.: En studie på tre olika fotledsortoser
KTH, School of Technology and Health (STH).
KTH, School of Technology and Health (STH).
2017 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Analysis of muscle activity of the lower leg at walking speed : A study on three types of ankle foot orthoses (English)
Abstract [sv]

Projektet syftade till att undersöka skillnaden på tre olika utformningar av fotledsortoser när det kommer till muskel-aktivitet i underbenet vid gång. Det genomfördes på grund av att det finns få studier på hur olika fotledsortoser förhåller sig till varandra, därmed är kunskapen begränsad. Tillvägagångssättet var att skriva ett matlabskript som manipulerade och analyserade all indata och levererade jämförbara resultat för de enskilda ortoserna. Analysen skedde i fyra övergripande moment där det första var att manipulera EMG:ts rådata för att förenkla analysen av den, det andra momentet var att definiera stegtider utifrån fotsuletrycksdata. Tredje momentet innefattade att manipulera referensdata på samma sätt som i moment ett och det fjärde var att uttrycka EMG-data i procent av referensdatan.Efter att EMG-data analyserats så jämfördes de olika ortoserna genom att medelvärden från samtliga försökspersoner beräknades i Excel. Resultaten visade att muskelaktiviteten i "Triceps Surae" överlag verkar minska med ökad plantarflexion. Slutsatsen fick delas upp muskel för muskel och har ingen genomgående trend utan slutsatsen blev olika för varje muskel.

Abstract [en]

The aim of this project is to investigate the differences in muscle activity of the lower leg between three types of ankle foot orthoses. The reason behind the project is that there is little knowledge about differences between different types of orthoses. The method used to tackle this task was to write a Matlab script that manipulated and anlyzed all the data required to yield a result for each individual orthoses that then could be used to compare them to each other. This was done in four major steps, the first of which was to manipulate the EMG-data of the chosen file so that it became easier to analyze, the second step was to use the data from a pressure sole to determine when steps started and ended. Thirdly, the reference data was manipulated in the same way as in step one. The fourth and final step was to express the chosen file in percent of the reference data. Finally, Excel was used to compare the different orthoses by calculating mean values from the test subjects data. The results showed that the muscel actvity in "Triceps Surae" seems to decrease with increased plantarflexion.The conclussion had to be divided into one conclussion per muscle, the different conlussions differed for every muscle.

Place, publisher, year, edition, pages
2017. , 47 p.
Series
TRITA-STH, 2017:66
Keyword [sv]
Ortos, fotledsortos, muskelaktivitet, underbenet, EMG, Elektromyografi
National Category
Medical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-210687OAI: oai:DiVA.org:kth-210687DiVA: diva2:1119292
External cooperation
Karolinska Institutet
Subject / course
Medical Engineering
Educational program
Master of Science in Engineering - Medical Engineering
Supervisors
Examiners
Available from: 2017-07-06 Created: 2017-07-03 Last updated: 2017-07-06Bibliographically approved

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File name FULLTEXT01.pdfFile size 2388 kBChecksum SHA-512
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Type fulltextMimetype application/pdf

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