Spatial Distribution of Muscular Effects of Acute Whole-Body Electromyostimulation at the Mid-Thigh and Lower Leg-A Pilot Study Applying Magnetic Resonance Imaging

Götz M, Heiß R, von Stengel S, Roemer F, Berger J, Nagel AM, Uder M, Kemmler W (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Sensors MDPI

Book Volume: 22

Journal Issue: 24

DOI: 10.3390/s222410017

Abstract

Whole-body electromyostimulation (WB-EMS) is an innovative training method that stimulates large areas simultaneously. In order to determine the spatial distribution of WB-EMS with respect to volume involvement and stimulation depth, we determined the extent of intramuscular edema using magnetic resonance imaging (MRI) as a marker of structural effects. Intense WB-EMS first application (20 min, bipolar, 85 Hz, 350 mu s) was conducted with eight physically less trained students without previous WB-EMS experience. Transversal T2-weighted MRI was performed at baseline and 72 h post WB-EMS to identify edema at the mid-thigh and lower leg. The depth of the edema ranged from superficial to maximum depth with superficial and deeper muscle groups of the mid-thigh or lower leg area approximately affected in a similar fashion. However, the grade of edema differed between the muscle groups, which suggests that the intensity of EMS-induced muscular contraction was not identical for all muscles. WB-EMS of the muscles via surface cuff electrodes has an effect on deeper parts of the stimulated anatomy. Reviewing the spatial and volume distribution, we observed a heterogeneous pattern of edema. We attribute this finding predominately to different stimulus thresholds of the muscles and differences in the stress resistance of the muscles.

Authors with CRIS profile

Rafael Heiß Institute of Radiology Simon von Stengel Institute of Radiology Frank Roemer Institute of Radiology Armin Michael Nagel Professur für metabolische und funktionelle MR-Bildgebung Michael Uder Lehrstuhl für Diagnostische Radiologie Wolfgang Kemmler Lehrstuhl für Medizinische Physik und Mikrogewebetechnik

Involved external institutions

Deutsche Hochschule für Prävention und Gesundheitsmanagement GmbH DE Germany (DE)

How to cite

APA:

Götz, M., Heiß, R., von Stengel, S., Roemer, F., Berger, J., Nagel, A.M.,... Kemmler, W. (2022). Spatial Distribution of Muscular Effects of Acute Whole-Body Electromyostimulation at the Mid-Thigh and Lower Leg-A Pilot Study Applying Magnetic Resonance Imaging. Sensors, 22(24). https://dx.doi.org/10.3390/s222410017

MLA:

Götz, Marina, et al. "Spatial Distribution of Muscular Effects of Acute Whole-Body Electromyostimulation at the Mid-Thigh and Lower Leg-A Pilot Study Applying Magnetic Resonance Imaging." Sensors 22.24 (2022).

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