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Decomposition of tensiomyogram and comparison with torque twitch responses after post-activation potentiationAbazović, Ensar ...Objectives: This study evaluates the effect of post-activation potentiation (PAP) after 5x5s maximal voluntary isometric contractions (activation stimulus, AS) on tensiomyography (TMG) and torque ... twitch contractile parameters of vastus lateralis (VL) and medialis (VM), respectively. Further, we validated the decomposition of TMG response to separate responses of three fiber types. Methods: 15 healthy individuals participated in this study (40% women; age 19±2.3 years). A decomposition of VL TMG response was done after optimal fitting of three exponential curves. Results: We found main effects in contraction time (Tc) for muscle, method and time. Furthermore, we found interactions between muscle*method, method*time and muscle*method*time. Compared to PRE AS, we found shorter TMG Tc in VL and VM during the first two minutes after AS. Torque Tc remained unchanged in VL, while it increased in VM within 30 seconds after AS. A decomposition of VL TMG response confirmed PAP effects being present only in decomposed type IIb muscle fibers. Conclusion: The TMG is a sensitive method to detect PAP effects with a sensor mounted directly above the muscle belly. After the decomposition of the TMG signal to three separate muscle fiber phenotypes, we provided a non-invasive insight in the contribution of each muscle fiber phenotype to the PAP of the whole muscle.Source: Journal of Musculoskeletal and Neuronal Interactions. - ISSN 1108-7161 (Vol. 22, no. 3, Sep. 2022, str. 316-325)Type of material - article, component part ; adult, seriousPublish date - 2022Language - englishCOBISS.SI-ID - 120215555
Author
Abazović, Ensar |
Paravlić, Armin |
Zubac, Damir |
Kovačević, Erol |
Šimunič, Boštjan
Topics
Mišično-skeletni sistem |
skeletne mišice |
hitra mišična vlakna |
post-aktivacijski potencial |
PAP |
tenziomiografija |
skeletal muscles |
fast-twitch fibers |
post-activation potentiation |
decomposition |
tensiomyography
Author | Abazović, Ensar ... |
Title | Decomposition of tensiomyogram and comparison with torque twitch responses after post-activation potentiation |
Publication date | |
COBISS.SI-ID | 120215555 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Dekompozicija tenziomiograma skeletne mišice in identifikacija kontraktilnih parametrov občutljivih na mišične prilagoditve | L7-9421-2018 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
Files that belong to the publication
Link |
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https://www.ismni.org/jmni/pdf/89/jmni_22_316.pdf |
https://d.cobiss.net/repository/si/files/120215555/107015/ZRSKP_ParavlicA_120215555.pdf |
https://dirros.openscience.si/IzpisGradiva.php?id=15435 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Abazović, Ensar | |
Paravlić, Armin | 38248 |
Zubac, Damir | 50436 |
Kovačević, Erol | |
Šimunič, Boštjan | 21102 |
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