Muscle Contraction Adaptations in Top-Level Karate Athletes Assessed by Tensiomyography
In: International Journal of Environmental Research and Public Health, Vol 19, Iss 10309, p 10309 (2022, Jg. 19 (2022), Heft 10309, p 10309
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Zugriff:
Background: This paper aimed to compare the involuntary stimulated neuromuscular response of thigh muscles in top-level karate athletes and recreational groups. Methods: The study included 13 male karate athletes (KAs) and 14 non-athlete male individuals (NAs). Tensiomyographic (TMG) measurements were obtained from the rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), biceps femoris (BF) and semitendinosus (ST). Results: Statistically significant differences were observed between KAs and NAs in knee extensor/flexor delay time (Td), contraction time (Tc), total contraction time (Tct), maximal radial displacement of the muscle belly (Dm) and rate of muscle tension development (RMTD). On a group level, KA dominant-leg extensors and flexors and also non-dominant-leg knee flexors had significant differences when compared to NA. Tct is a TMG parameter in which the KAs and NAs differ the most in the case of the knee extensors, while flexor muscles differ the most in the RMTD parameter. Conclusions: The lower Tct values indicate an improved ability of top-level karateka to make fast contractions of the agonist muscles. KAs’ higher RMTD values suggest on strength characteristics needed in breaking actions of the antagonist muscles. Existence of contraction-relaxation-contraction neuromuscular pattern in the RF muscle suggests on implementation of training strategies that involves both rapid muscle contractions and relaxations.
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Muscle Contraction Adaptations in Top-Level Karate Athletes Assessed by Tensiomyography
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Autor/in / Beteiligte Person: | Jeknić, Velimir ; Dopsaj, Milivoj ; Toskić, Lazar ; Koropanovski, Nenad |
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Zeitschrift: | International Journal of Environmental Research and Public Health, Vol 19, Iss 10309, p 10309 (2022, Jg. 19 (2022), Heft 10309, p 10309 |
Veröffentlichung: | MDPI AG, 2022 |
Medientyp: | academicJournal |
ISSN: | 1660-4601 (print) ; 1661-7827 (print) |
DOI: | 10.3390/ijerph191610309 |
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