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Merhof, Dorit

Biomedical Engineering / Biomedizinische Technik

Joint Journal of the German Society for Biomedical Engineering in VDE and the Austrian and Swiss Societies for Biomedical Engineering and the German Society of Biomaterials

Editor-in-Chief: Dössel, Olaf

Editorial Board: Augat, Peter / Habibović, Pamela / Haueisen, Jens / Jahnen-Dechent, Wilhelm / Jockenhoevel, Stefan / Knaup-Gregori, Petra / Leonhardt, Steffen / Plank, Gernot / Radermacher, Klaus M. / Schkommodau, Erik / Stieglitz, Thomas / Boenick, Ulrich / Jaramaz, Branislav / Kraft, Marc / Lenarz, Thomas / Lenthe, Harry / Lo, Benny / Mainardi, Luca / Micera, Silvestro / Penzel, Thomas / Robitzki, Andrea A. / Schaeffter, Tobias / Snedeker, Jess G. / Sörnmo, Leif / Sugano, Nobuhiko / Werner, Jürgen /


IMPACT FACTOR 2018: 1.007
5-year IMPACT FACTOR: 1.390

CiteScore 2018: 1.24

SCImago Journal Rank (SJR) 2018: 0.282
Source Normalized Impact per Paper (SNIP) 2018: 0.831

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ISSN
1862-278X
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Volume 57 (2012)

Investigations of back muscle fatigue by simultaneous 31P MRS and surface EMG measurements

Reinhard Rzanny
  • AG Medizinische Physik, Institut für Diagnostische und Interventionelle Radiologie, Jena, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Roland Graßme
  • Klinik für Unfall-, Hand- und Wiederherstellungschirurgie, Funktionsbereich Motorik, Pathophysiologie und Biomechanik, Jena, Germany and Berufsgenossenschaft Nahrungsmittel und Gaststätten, Außenstelle Erfurt, Erfurt, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Jürgen R. Reichenbach
  • AG Medizinische Physik, Institut für Diagnostische und Interventionelle Radiologie, Jena, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Hans-Christoph Scholle
  • Klinik für Unfall-, Hand- und Wiederherstellungschirurgie, Funktionsbereich Motorik, Pathophysiologie und Biomechanik, Jena, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Werner A. Kaiser
  • Institut für Diagnostische und Interventionelle Radiologie, Friedrich-Schiller-Universität Jena, Jena, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2006-12-07 | DOI: https://doi.org/10.1515/BMT.2006.062

Abstract

Investigations of back muscle fatigue are important for understanding the role of muscle strain in the development of low back pain. The aim of this contribution is to review the two main techniques used for in vivo investigations of metabolic and electrophysiological changes, namely magnetic resonance phosphorous spectroscopy (31P MRS) and surface electromyography (SEMG), and to report some of our recent results on simultaneous measurements using these techniques during isometric back-muscle contraction in volunteers. Since it appears that electrophysiological and metabolic factors are simultaneously involved in the processes of fatigue and muscle recovery during load application, simultaneous acquisition of complete information is quite promising for obtaining new insights into the metabolic origin of electrophysiological changes or vice versa. Performing these measurements simultaneously, however, is more intricate owing to the occurrence of signal artifacts caused by mutual signal interferences of both techniques. Besides these mutual disturbances, further experimental difficulties are related to spatial limitations within the bore of clinical whole-body high-field magnetic resonance (MR) systems (1.5 T) and the sensitivity of MR measurements to motion-induced artifacts. Our own experimental results are presented, and problems that occur using both techniques simultaneously, as well as possibilities to resolve them, are discussed. The results shed light on the interrelation of electrophysiological and metabolic changes during fatigue of the back muscle while performing an exercise.

Keywords: isometric exercise; 31P nuclear magnetic resonance spectroscopy; phosphorus metabolism; surface electromyography

About the article

Corresponding author: Dr. Reinhard Rzanny, AG Medizinische Physik, Institut für Diagnostische und Interventionelle Radiologie, Philosophenweg 3, 07743 Jena, Germany Phone: +49-3641-935361 Fax: +49-3641-9-36767


Published Online: 2006-12-07

Published in Print: 2006-12-01


Citation Information: Biomedizinische Technik, Volume 51, Issue 5/6, Pages 305–313, ISSN (Online) 1862-278X, ISSN (Print) 0013-5585, DOI: https://doi.org/10.1515/BMT.2006.062.

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