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Twenty-three male under-15 players (14.6\u2009\u00b1\u20090.2 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\u2009=\u20090.029) and had higher values in skeletal age (p\u2009&lt;\u20090.001), sitting height (p\u2009=\u20090.005), CMJ (p\u2009=\u20090.038), and IGF-1 (p\u2009=\u20090.013). Players given greater playing time exhibited significantly lower fatigue index (p\u2009=\u20090.012), but higher CMJ (p\u2009=\u20090.003) and IGF-1 (p\u2009=\u20090.001) 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\u2019 evaluation of players and on the possible factors that may affect the future playing status of young male soccer players.<\/jats:p>","DOI":"10.1038\/s41598-022-08567-5","type":"journal-article","created":{"date-parts":[[2022,3,16]],"date-time":"2022-03-16T11:03:55Z","timestamp":1647428635000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Exploring interactions between maturity status and playing time with fluctuations in physical fitness and hormonal markers in youth soccer players"],"prefix":"10.1038","volume":"12","author":[{"given":"Ebrahim","family":"Eskandarifard","sequence":"first","affiliation":[]},{"given":"Hadi","family":"Nobari","sequence":"additional","affiliation":[]},{"given":"Mustafa","family":"Sogut","sequence":"additional","affiliation":[]},{"given":"Filipe Manuel","family":"Clemente","sequence":"additional","affiliation":[]},{"given":"Ant\u00f3nio Jos\u00e9","family":"Figueiredo","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2022,3,16]]},"reference":[{"issue":"6","key":"8567_CR1","doi-asserted-by":"publisher","first-page":"192","DOI":"10.1016\/S1054-139X(02)00485-8","volume":"31","author":"AD Rogol","year":"2002","unstructured":"Rogol, A. 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