Seven Weeks of Jump Training with Superimposed Whole-Body Electromyostimulation Does Not Affect the Physiological and Cellular Parameters of Endurance Performance in Amateur Soccer Players

Nicolas Wirtz, André Filipovic, Sebastian Gehlert, Markus de Marées, Thorsten Schiffer, Wilhelm Bloch and Lars Donath
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Nicolas Wirtz: Institute of Training Science and Sport Informatics, Department of Intervention Research in Exercise Training, German Sport University Cologne, 50933 Cologne, Germany
André Filipovic: Institute of Cardiology and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, 50933 Cologne, Germany
Sebastian Gehlert: Institute of Cardiology and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, 50933 Cologne, Germany
Markus de Marées: Section of Sports Medicine and Sports Nutrition, Faculty of Sports Science, Ruhr University of Bochum, 44801 Bochum, Germany
Thorsten Schiffer: Outpatient Clinic for Sports Traumatology and Public Health Consultation, German Sport University Cologne, 50933 Cologne, Germany
Wilhelm Bloch: Institute of Cardiology and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, 50933 Cologne, Germany
Lars Donath: Institute of Training Science and Sport Informatics, Department of Intervention Research in Exercise Training, German Sport University Cologne, 50933 Cologne, Germany

IJERPH, 2020, vol. 17, issue 3, 1-13

Abstract: Intramuscular density of monocarboxylate-transporter (MCT) could affect the ability to perform high amounts of fast and explosive actions during a soccer game. MCTs have been proven to be essential for lactate shuttling and pH regulation during exercise and can undergo notable adaptational changes depending on training. The aim of this study was to evaluate the occurrence and direction of potential effects of a 7-weeks training period of jumps with superimposed whole-body electromyostimulation on soccer relevant performance surrogates and MCT density in soccer players. For this purpose, 30 amateur soccer players were randomly assigned to three groups. One group performed dynamic whole-body strength training including 3 x 10 squat jumps with WB-EMS (EG, n = 10) twice a week in addition to their daily soccer training routine. A jump training group (TG, n = 10) performed the same training routine without EMS, whereas a control group (CG, n = 8) merely performed their daily soccer routine. 2 (Time: pre vs. post) x 3 (group: EG, TG, CG) repeated measures analyses of variance (rANOVA) revealed neither a significant time, group nor interaction effect for VO 2 peak, Total Time to Exhaustion and La max as well as MCT-1 density. Due to a lack of task-specificity of the underlying training stimuli, we conclude that seven weeks of WB-EMS superimposed to jump exercise twice a week does not relevantly influence aerobic performance or MCT density.

Keywords: electrostimulation; soccer; lactate; VO 2 peak; monocarboxylate transporter (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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