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Title:Decomposition of tensiomyogram and comparison with torque twitch responses after post-activation potentiation
Authors:ID Abazović, Ensar (Author)
ID Paravlić, Armin (Author)
ID Zubac, Damir (Author)
ID Kovačević, Erol (Author)
ID Šimunič, Boštjan (Author)
Files:.pdf PDF - Presentation file, download (1,52 MB)
MD5: 062CCD9FD404C4C7395F46E8F7E836B9
 
URL URL - Source URL, visit https://www.ismni.org/jmni/pdf/89/jmni_22_316.pdf
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZRS Koper - Science and Research Centre Koper
Abstract: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.
Keywords:skeletal muscles, fast-twitch fibers, post-activation potentiation, decomposition, tensiomyography
Publication status:Published
Publication version:Version of Record
Article acceptance date:08.03.2022
Year of publishing:2022
Number of pages:str. 316-325
Numbering:Vol. 22, no. 3
PID:20.500.12556/DiRROS-15435 New window
UDC:612.74:796.012.1
ISSN on article:1108-7161
COBISS.SI-ID:120215555 New window
Note:Soavtorji: Armin Paravlić, Damir Zubac, Erol Kovačević, Boštjan Šimunič;
Publication date in DiRROS:05.09.2022
Views:1389
Downloads:512
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ABAZOVIĆ, Ensar, PARAVLIĆ, Armin, ZUBAC, Damir, KOVAČEVIĆ, Erol and ŠIMUNIČ, Boštjan, 2022, Decomposition of tensiomyogram and comparison with torque twitch responses after post-activation potentiation. Journal of Musculoskeletal and Neuronal Interactions [online]. 2022. Vol. 22, no. 3, p. 316–325. [Accessed 6 April 2025]. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=15435
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Record is a part of a journal

Title:Journal of Musculoskeletal and Neuronal Interactions
Shortened title:J. Musculoskeletal Neuronal Interact.
Publisher:Hylonome. Parask. Liritis
ISSN:1108-7161
COBISS.SI-ID:524838681 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:L7-9421-2018
Name:Dekompozicija tenziomiograma skeletne mišice in identifikacija kontraktilnih parametrov občutljivih na mišične prilagoditve

Licences

License:CC BY-NC-SA 4.0, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-nc-sa/4.0/
Description:A Creative Commons license that bans commercial use and requires the user to release any modified works under this license.
Licensing start date:05.09.2022

Secondary language

Language:Slovenian
Keywords:skeletne mišice, hitra mišična vlakna, post-aktivacijski potencial, PAP, tenziomiografija


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