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Title:Lower correlation between biceps femoris contraction time and maximal running speed in children than in adults : a longitudinal study in 9- to 14-year old children
Authors:ID Završnik, Jernej (Author)
ID Pišot, Rado (Author)
ID Volmut, Tadeja (Author)
ID Koren, Katja (Author)
ID Blažun Vošner, Helena (Author)
ID Kokol, Peter (Author)
ID Vošner, Janez (Author)
ID Šimunič, Boštjan (Author)
Files:.pdf Annales_Kinesiologiae_2016_Zavrsnik_et_al._Lower_Correlation_Between_Biceps_Femoris_Contraction_Time_and_Maximal_Running_Speed_in_Childr.pdf (604,33 KB)
MD5: 7BEFD16CBB6A8E44E5CC15C3194E4444
PID: 20.500.12556/dkum/6131c2b2-65e1-4a06-8644-defc7fab74eb
 
URL http://ojs.zrs.upr.si/index.php/AK/article/view/112
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FZV - Faculty of Health Sciences
Abstract:Biceps femoris is a major propulsor muscle in sprinting and its contraction time negatively correlates to the running speeds of adults. Our aim was to compare age and gender-related correlations between vastus lateralis and biceps femoris contraction times and running speeds during a longitudinal study of 9- to 14-year old children. On a yearly basis we conducted vastus lateralis and biceps femoris tensiomyographic measurements of muscle contraction time and maximal running speeds measured during 7 meter sprints with flying starts using photocells in 107 children (53 boys). Vastus lateralis contraction time was not correlated with the running speed. However, biceps femoris contraction time was negatively correlated with the running speed only in boys after the age of 12.9 years (Pearson r ranges from -0.391 to -0.426; p < 0.002). It was concluded that biceps femoris contraction time is far less correlated with running speed than in adult athletes (Pearson r = -0.60); however, the correlation is gender and age-specific. It seems that the knee flexor and hip extensor, biceps femoris, is not as yet the major determinant of running speed in 9- to 14-year old children at that age.
Keywords:skeletal muscles, biceps femoris, vastus lateralis, tensiomyography, pediatrics
Publication status:Published
Publication version:Version of Record
Year of publishing:2016
Number of pages:str. 21-42
Numbering:Letn. 7, št. 1
PID:20.500.12556/DKUM-66980 New window
ISSN:2335-4240
UDC:612.741:796.012.13
ISSN on article:2335-4240
COBISS.SI-ID:1538955460 New window
NUK URN:URN:SI:UM:DK:LU2T09BW
Publication date in DKUM:21.07.2017
Views:2352
Downloads:144
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
ZAVRŠNIK, Jernej, PIŠOT, Rado, VOLMUT, Tadeja, KOREN, Katja, BLAŽUN VOŠNER, Helena, KOKOL, Peter, VOŠNER, Janez and ŠIMUNIČ, Boštjan, 2016, Lower correlation between biceps femoris contraction time and maximal running speed in children than in adults : a longitudinal study in 9- to 14-year old children. Annales kinesiologiae [online]. 2016. Vol. 7, no. 1, p. 21–42. [Accessed 20 January 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=66980
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Record is a part of a journal

Title:Annales kinesiologiae
Shortened title:Ann. kinesiol.
Publisher:Univerza na Primorskem, Znanstveno-raziskovalno središče, Univerzitetna založba Annales, Univerza na Primorskem, Znanstveno-raziskovalno središče, Univerzitetna založba Annales2010-2016, Znanstveno-raziskovalno središče Koper, Annales ZRS
ISSN:2335-4240
COBISS.SI-ID:269008128 New window

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:21.07.2017

Secondary language

Language:Slovenian
Title:Korelacija med časom krčenja mišice biceps femoris in hitrostjo šprinta je pri otrocih nižja kot pri odraslih : longitudinalna študija 9- do 14-letnih otrok
Abstract:Skeletna mišica biceps femoris je pomembna za propulzijo v fazi odriva med tekom in vemo, da je njen čas krčenja negativno povezan z maksimalno hitrostjo teka pri odraslih moških. Zato smo si za cilj zastavili, da preverimo povezavo med časom krčenja mišic vastus lateralis in biceps femoris pri otrocih, glede na spol in starost. V longitudinalni 5-letni študiji smo spremljali 107 otrok (53 dečkov) s periodično letnimi meritvami telesnih značilnosti, maksimalne hitrosti teka in kontraktilnih lastnosti omenjenih mišic z uporabo Tenziomiografije. Otroci so bili na začetku stari 9 let in na koncu 14 let. Ugotovili smo, da čas krčenja mišice vastus lateralis ni povezan z maksimalno hitrostjo teka. Medtem, ko je bil čas krčenja mišice biceps femoris negativno povezan z maksimalno hitrostjo teka, a le pri dečkih po 12.9 letu starosti (Pearsonov r med -0.391 in -0.426; p < 0.002). Zaključimo lahko, da je čas krčenja mišice biceps femoris bistveno manj povezan z maksimalno hitrostjo teka pri otrocih, kot pri odraslih (Pearsonov r = -0.60). Sklepamo lahko, da mišica biceps femoris pri tej starosti otrok še ni poglaviten dejavnik maksimalne hitrosti teka.
Keywords:skeletne mišice, biceps femoris, vastus lateralis, tenziomiografija, pediatrija


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