41986
2018
2018
eng
10
480
postprint
1
2018-11-22
2018-11-22
--
Coherent behavior of neuromuscular oscillations between isometrically interacting subjects
Previous research has shown that electrical muscle activity is able to synchronize between muscles of one subject. The ability to synchronize the mechanical muscle oscillations measured by Mechanomyography (MMG) is not described sufficiently. Likewise, the behavior of myofascial oscillations was not considered yet during muscular interaction of two human subjects. The purpose of this study is to investigate the myofascial oscillations intra- and interpersonally. For this the mechanical muscle oscillations of the triceps and the abdominal external oblique muscles were measured by MMG and the triceps tendon was measured by mechanotendography (MTG) during isometric interaction of two subjects (n = 20) performed at 80% of the MVC using their arm extensors. The coherence of MMG/MTG-signals was analyzed with coherence wavelet transform and was compared with randomly matched signal pairs. Each signal pairing shows significant coherent behavior. Averagely, the coherent phases of n = 485 real pairings last over 82 ± 39 % of the total duration time of the isometric interaction. Coherent phases of randomly matched signal pairs take 21 ± 12 % of the total duration time (n = 39). The difference between real vs. randomly matched pairs is significant (U = 113.0, p = 0.000, r = 0.73). The results show that the neuromuscular system seems to be able to synchronize to another neuromuscular system during muscular interaction and generate a coherent behavior of the mechanical muscular oscillations. Potential explanatory approaches are discussed.
Postprints der Universität Potsdam : Humanwissenschaftliche Reihe
experimental study utilizing wavelet coherence analysis of mechanomyographic and mechanotendographic signals
urn:nbn:de:kobv:517-opus4-419864
online registration
Scientific Reports 8 (2018) Art. 15456 DOI: 10.1038/s41598-018-33579-5
<a href="http://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/41987">Bibliographieeintrag der Originalveröffentlichung/Quelle</a>
CC-BY - Namensnennung 4.0 International
Laura V. Schaefer
Frank N. Bittmann
Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe
480
eng
uncontrolled
motor unit synchronization
eng
uncontrolled
muscle
eng
uncontrolled
task
eng
uncontrolled
contractions
eng
uncontrolled
humans
eng
uncontrolled
magnetoencephalography
eng
uncontrolled
systems
eng
uncontrolled
power
eng
uncontrolled
hand
eng
uncontrolled
time
Technik
Naturwissenschaften und Mathematik
open_access
Strukturbereich Kognitionswissenschaften
Referiert
Open Access
Universität Potsdam
https://publishup.uni-potsdam.de/files/41986/phr480.online.pdf
41987
2018
2018
eng
1
10
8
article
Macmillan Publishers Limited
London
1
2018-10-18
2018-10-18
--
Coherent behavior of neuromuscular oscillations between isometrically interacting subjects
Previous research has shown that electrical muscle activity is able to synchronize between muscles of one subject. The ability to synchronize the mechanical muscle oscillations measured by Mechanomyography (MMG) is not described sufficiently. Likewise, the behavior of myofascial oscillations was not considered yet during muscular interaction of two human subjects. The purpose of this study is to investigate the myofascial oscillations intra- and interpersonally. For this the mechanical muscle oscillations of the triceps and the abdominal external oblique muscles were measured by MMG and the triceps tendon was measured by mechanotendography (MTG) during isometric interaction of two subjects (n = 20) performed at 80% of the MVC using their arm extensors. The coherence of MMG/MTG-signals was analyzed with coherence wavelet transform and was compared with randomly matched signal pairs. Each signal pairing shows significant coherent behavior. Averagely, the coherent phases of n = 485 real pairings last over 82 ± 39 % of the total duration time of the isometric interaction. Coherent phases of randomly matched signal pairs take 21 ± 12 % of the total duration time (n = 39). The difference between real vs. randomly matched pairs is significant (U = 113.0, p = 0.000, r = 0.73). The results show that the neuromuscular system seems to be able to synchronize to another neuromuscular system during muscular interaction and generate a coherent behavior of the mechanical muscular oscillations. Potential explanatory approaches are discussed.
Scientific Reports
experimental study utilizing wavelet coherence analysis of mechanomyographic and mechanotendographic signals
10.1038/s41598-018-33579-5
2045-2322
Universität Potsdam, Publikationsfonds
PA 2018_65
1630.30
online registration
<a href="http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-419864">Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Humanwissenschaftliche Reihe ; 480</a>
CC-BY - Namensnennung 4.0 International
Laura V. Schaefer
Frank N. Bittmann
eng
uncontrolled
motor unit synchronization
eng
uncontrolled
muscle
eng
uncontrolled
task
eng
uncontrolled
contractions
eng
uncontrolled
humans
eng
uncontrolled
magnetoencephalography
eng
uncontrolled
systems
eng
uncontrolled
power
eng
uncontrolled
hand
eng
uncontrolled
time
Technik
Naturwissenschaften und Mathematik
open_access
Strukturbereich Kognitionswissenschaften
Referiert
Publikationsfonds der Universität Potsdam
Open Access