Authors:
Rauno Álvaro de Paula Simola
1
;
Christian Raeder
1
;
Michael Kellmann
2
;
Tim Meyer
3
;
Mark Pfeiffer
4
and
Alexander Ferrauti
1
Affiliations:
1
Faculty of Sports Science and Ruhr-University Bochum, Germany
;
2
Faculty of Sports Science, Ruhr-University Bochum, School of Human Movement Studies and School of Psychology and The University of Queensland, Germany
;
3
Institute of Sports and Preventive Medicine and Saarland University, Germany
;
4
Institute of Sports Science and Johannes-Gutenberg University, Germany
Keyword(s):
Tensiomyography, Reliability, Validity, Strength Exercise.
Related
Ontology
Subjects/Areas/Topics:
Health, Sports Performance and Support Technology
;
Sport Science Research and Technology
;
Training and Testing
Abstract:
Tensiomyography (TMG) reliability and external validity using maximal voluntary isometric contraction (MVIC) following different strength training protocols (STP) were analysed. Twenty healthy male were tested two times over one week and TMG reliability was analysed in the muscles Rectus Femoris (RF), Biceps Femoris (BF), and Gastrocnemius Lateralis (GL), after an individual maximal and submaximal electrical stimulation. Moreover, TMG external validity was assessed through Pearson correlation between changes in TMG muscle mechanical properties in RF and changes in MVIC in squat exercise after five different lower-limb STPs. Maximal electrical stimulation showed the highest ICC scores for TMG muscle properties reliability in all muscles investigated. Significant Pearson correlation coefficients were found between changes in TMG mechanical properties and changes in MVIC after STPs characterized by high intensity, time under tension and eccentric overload. TMG is a valid and reliable me
thod to assess muscle mechanical properties especially under maximal condition.
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