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Exploring interactions between maturity status and playing time with fluctuations in physical fitness and hormonal markers in youth soccer players
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s41598-022-08567-5.pdf
Date
2022-03-01
Author
Eskandarifard, Ebrahim
Nobari, Hadi
Söğüt, Mustafa
Clemente, Filipe Manuel
Figueiredo, Antonio Jose
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The purpose of this study was to determine the differences in functional capacities and hormonal indices according to biological maturity and seasonal playing time status in young soccer players. Twenty-three male under-15 players (14.6 +/- 0.2 years) were divided into two groups, based on their maturity status and seasonal playing time. They were measured for anthropometrics, Yo-Yo intermittent recovery level 1 (YYIR1), seven repeated sprint test (7RST), countermovement jump (CMJ), skeletal age, growth hormone, and insulin-like growth factor-1 (IGF-1) level. Age at peak height velocity (APHV) was determined to estimate the maturity timing. The results revealed that players who advanced in maturation were significantly heavier (p = 0.029) and had higher values in skeletal age (p < 0.001), sitting height (p = 0.005), CMJ (p = 0.038), and IGF-1 (p = 0.013). Players given greater playing time exhibited significantly lower fatigue index (p = 0.012), but higher CMJ (p = 0.003) and IGF-1 (p = 0.001) values. The overall results highlighted that early-maturing players and players with greater playing time obtained higher values in both CMJ and IGF-1. The findings may provide an insight on the coaches' evaluation of players and on the possible factors that may affect the future playing status of young male soccer players.
URI
https://hdl.handle.net/11511/96882
Journal
SCIENTIFIC REPORTS
DOI
https://doi.org/10.1038/s41598-022-08567-5
Collections
Department of Physical Education and Sports, Article
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E. Eskandarifard, H. Nobari, M. Söğüt, F. M. Clemente, and A. J. Figueiredo, “Exploring interactions between maturity status and playing time with fluctuations in physical fitness and hormonal markers in youth soccer players,”
SCIENTIFIC REPORTS
, vol. 12, no. 1, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/96882.