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Intramuscular fibre conduction velocity and muscle fascicle length in human vastus lateralis.

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  • معلومة اضافية
    • NAICS/Industry Codes:
      611620 Sports and Recreation Instruction
    • Abstract:
      Muscle fascicle length and muscle fibre conduction velocity (MFCV) are thought to be important parameters for power performance. It might be expected that faster muscle fibre conduction velocities would compensate for longer fascicle lengths to increase the speed of action potential propagation along the elongated fibres. However, the relationship between muscle fascicle length and MFCV remains unknown. The aim of the present study was to explore the relationship between average vastus lateralis MFCV and average fascicle length. In 17 moderately trained, healthy, male, physical education students (age, 23.4 ± 3.1 years; body height, 178 ± 5.5 cm; body mass, 82.7 ± 6.9 kg; body mass index, 24.6 ± 1.5 kg·m−2) resting MFCV was measured with intramuscular microelectrodes while muscle architecture was evaluated with ultrasonography. Fascicle length was highly correlated with total MFCV (r = 0.923, p = 0.000), maximum MFCV (r = 0.949, p = 0.000), and MFCV of the fastest (r = 0.709, p = 0.001), but not of the slowest fibres (r = 0.131, p = 0.616). No significant correlations were also found between vastus lateralis thickness or fascicle angle with any of MFCV parameters (r = 0.145–0.430; R2 < 0.130; p > 0.05). These data indicate that average MFCV is associated with average fascicle length in vastus lateralis muscle in different individuals. It seems that participants with longer fascicle lengths have also higher MFCVs. [ABSTRACT FROM AUTHOR]
    • Abstract:
      La longueur des faisceaux musculaires et la vitesse de conduction sur la fibre musculaire (« MFCV ») seraient des paramètres de la performance en puissance. On pourrait poser l'hypothèse selon laquelle une plus haute vitesse de conduction sur la fibre musculaire compenserait une plus grande longueur des fascicules, et ce, afin d'accroître la vitesse de propagation du potentiel d'action le long des fibres étirées. Toutefois, la relation entre la longueur des faisceaux musculaires et du MFCV n'est pas établie. Cette étude se propose d'explorer la relation entre la MFCV moyenne dans le muscle vaste externe et la longueur moyenne des faisceaux. On mesure chez 17 étudiants, masculins, en éducation physique, en bonne santé et modérément entraînés (âge, 23,4 ± 3,1 ans; stature, 178 ± 5,5 cm; masse corporelle, 82,7 ± 6,9 kg; indice de masse corporelle, 24,6 ± 1,5 kg·m−2) la MFCV au repos au moyen de microélectrodes intramusculaires et on évalue l'architecture musculaire par ultrasonographie. La longueur des faisceaux est hautement corrélée avec la MFCV totale (r = 0,923, p = 0,000), la MFCV maximale (r = 0,949, p = 0,000) et la MFVC des fibres les plus rapides (r = 0,709, p = 0,001), mais pas des plus lentes (r = 0,131, p = 0,616). On n'observe aucune corrélation significative entre l'épaisseur du muscle vaste externe ou l'angle des faisceaux et toute autre variable de la MFCV (r = 0,145–0,430; R 2 < 0,130; p > 0,05). D'après ces observations, la MFCV moyenne est associée à la longueur moyenne des faisceaux du muscle vaste externe chez des individus distincts. Il semble que les sujets présentant de plus longs faisceaux musculaires présentent aussi une vitesse de conduction plus élevée sur les fibres musculaires. [Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
    • Abstract:
      Copyright of Applied Physiology, Nutrition & Metabolism is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
    • Author Affiliations:
      1Sports Performance Laboratory, School of Physical Education and Sports Science, National and Kapodistrian University of Athens, Ethnikis Antistassis 41, 172 37, Daphne, Athens, Greece.
      2A' Neurology Clinic, Aiginition Hospital, Medical School, National and Kapodistrian University of Athens, Ethnikis Antistassis 41, 172 37, Daphne, Athens, Greece.
    • ISSN:
      1715-5312
    • Accession Number:
      10.1139/apnm-2018-0081
    • Accession Number:
      134326959
  • Citations
    • ABNT:
      METHENITIS, S. et al. Intramuscular fibre conduction velocity and muscle fascicle length in human vastus lateralis. Applied Physiology, Nutrition & Metabolism, [s. l.], v. 44, n. 2, p. 133–138, 2019. DOI 10.1139/apnm-2018-0081. Disponível em: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=134326959&custid=s8280428. Acesso em: 29 maio. 2020.
    • AMA:
      Methenitis S, Stasinaki A-N, Zaras N, Spengos K, Karandreas N, Terzis G. Intramuscular fibre conduction velocity and muscle fascicle length in human vastus lateralis. Applied Physiology, Nutrition & Metabolism. 2019;44(2):133-138. doi:10.1139/apnm-2018-0081.
    • APA:
      Methenitis, S., Stasinaki, A.-N., Zaras, N., Spengos, K., Karandreas, N., & Terzis, G. (2019). Intramuscular fibre conduction velocity and muscle fascicle length in human vastus lateralis. Applied Physiology, Nutrition & Metabolism, 44(2), 133–138. https://doi.org/10.1139/apnm-2018-0081
    • Chicago/Turabian: Author-Date:
      Methenitis, Spyridon, Angeliki-Nikoletta Stasinaki, Nikolaos Zaras, Konstantinos Spengos, Nikolaos Karandreas, and Gerasimos Terzis. 2019. “Intramuscular Fibre Conduction Velocity and Muscle Fascicle Length in Human Vastus Lateralis.” Applied Physiology, Nutrition & Metabolism 44 (2): 133–38. doi:10.1139/apnm-2018-0081.
    • Harvard:
      Methenitis, S. et al. (2019) ‘Intramuscular fibre conduction velocity and muscle fascicle length in human vastus lateralis’, Applied Physiology, Nutrition & Metabolism, 44(2), pp. 133–138. doi: 10.1139/apnm-2018-0081.
    • Harvard: Australian:
      Methenitis, S, Stasinaki, A-N, Zaras, N, Spengos, K, Karandreas, N & Terzis, G 2019, ‘Intramuscular fibre conduction velocity and muscle fascicle length in human vastus lateralis’, Applied Physiology, Nutrition & Metabolism, vol. 44, no. 2, pp. 133–138, viewed 29 May 2020, .
    • MLA:
      Methenitis, Spyridon, et al. “Intramuscular Fibre Conduction Velocity and Muscle Fascicle Length in Human Vastus Lateralis.” Applied Physiology, Nutrition & Metabolism, vol. 44, no. 2, Feb. 2019, pp. 133–138. EBSCOhost, doi:10.1139/apnm-2018-0081.
    • Chicago/Turabian: Humanities:
      Methenitis, Spyridon, Angeliki-Nikoletta Stasinaki, Nikolaos Zaras, Konstantinos Spengos, Nikolaos Karandreas, and Gerasimos Terzis. “Intramuscular Fibre Conduction Velocity and Muscle Fascicle Length in Human Vastus Lateralis.” Applied Physiology, Nutrition & Metabolism 44, no. 2 (February 2019): 133–38. doi:10.1139/apnm-2018-0081.
    • Vancouver/ICMJE:
      Methenitis S, Stasinaki A-N, Zaras N, Spengos K, Karandreas N, Terzis G. Intramuscular fibre conduction velocity and muscle fascicle length in human vastus lateralis. Applied Physiology, Nutrition & Metabolism [Internet]. 2019 Feb [cited 2020 May 29];44(2):133–8. Available from: http://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=134326959&custid=s8280428