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Isometric Strength in Volleyball Players of Different Age: A Multidimensional Model

1
Faculty of Sport and Physical Education, University of Belgrade, 11221 Belgrade, Serbia
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Institute of Sport, Tourism and Service, South Ural State University, Chelyabinsk 454080, Russia
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Faculty of Sport and Physical Education, University of Priština – Kosovska Mitrovica, 38218 Leposavić, Serbia
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Faculty of Sport, University of Ljubljana, 1501 Ljubljana, Slovenia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(12), 4107; https://doi.org/10.3390/app10124107
Received: 12 May 2020 / Revised: 9 June 2020 / Accepted: 10 June 2020 / Published: 15 June 2020
(This article belongs to the Section Applied Biosciences and Bioengineering)
Physical abilities modelling has a profound connection with long-term athlete development and talent identification. There is not enough data to support evidence about age-related changes in volleyball players’ isometric strength. This study aimed to define the age-related model of volleyball players multidimensional muscles’ contractile characteristics. The participants were divided according to gender (male n = 112, female n = 371) and according to age into four groups: under 15 (U15), under 17 (U17), under 19 (U19), and under 21 (U21) years old. Participants performed three isometric strength tests: handgrip, lumbar extensors, and ankle extensors. Maximal force and rate of force development results from all three tests were transformed into a single Score value as a representation of contractile potentials using principal component analysis. The main findings were that Score values of both genders showed significant differences between age groups (male: F = 53.17, p < 0.001; Female: F = 41.61, p < 0.001). Trends of those yearly changes were slightly more balanced for female subjects (3.9%) compared to male subjects (6.3%). These findings could help in strength training adjustments when working with volleyball players of a certain age, and enable coaches to detect ones that stand out positively, considering them as strong in regard to their age. View Full-Text
Keywords: isometric strength; abilities; profile; muscle forces prediction; training; rehabilitation isometric strength; abilities; profile; muscle forces prediction; training; rehabilitation
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MDPI and ACS Style

Majstorović, N.; Dopsaj, M.; Grbić, V.; Savić, Z.; Vićentijević, A.; Aničić, Z.; Zadražnik, M.; Toskić, L.; Nešić, G. Isometric Strength in Volleyball Players of Different Age: A Multidimensional Model. Appl. Sci. 2020, 10, 4107. https://doi.org/10.3390/app10124107

AMA Style

Majstorović N, Dopsaj M, Grbić V, Savić Z, Vićentijević A, Aničić Z, Zadražnik M, Toskić L, Nešić G. Isometric Strength in Volleyball Players of Different Age: A Multidimensional Model. Applied Sciences. 2020; 10(12):4107. https://doi.org/10.3390/app10124107

Chicago/Turabian Style

Majstorović, Nikola, Milivoj Dopsaj, Vladimir Grbić, Zoran Savić, Aleksandar Vićentijević, Zdravko Aničić, Marko Zadražnik, Lazar Toskić, and Goran Nešić. 2020. "Isometric Strength in Volleyball Players of Different Age: A Multidimensional Model" Applied Sciences 10, no. 12: 4107. https://doi.org/10.3390/app10124107

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