Pre-Season Changes in Physical Performance and Early Competitive Squad Inclusion in Under-15 Male Soccer Players
Artur Avelino Birk Preissler, Filipe Manuel Clemente, Júlio Brugnara Mello, Ana Filipa Silva, Rui Miguel Silva, Pedro Schons · 2026
Read Pre-Season Changes in Physical Performance and Early Competitive Squad Inclusion in Under-15 Male Soccer Players by Artur Avelino Birk Preissler, Filipe Manuel Clemente, Júlio Brugnara Mello, Ana Filipa Silva, Rui Miguel Silva, Pedro Schons (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13511696.txt.
Description
Artur Avelino Birk Preissler and colleagues measured pre-season fitness changes in under-15 male soccer players and compared them with early squad selection. Thirty-seven outfield players took jump, sprint, direction-change, and endurance tests before and after pre-season.
Jump heights and direction-change speed improved over pre-season, while sprint times and endurance scores did not change clearly. Fourteen players made early match squads, and they already tested higher than the rest at both time points. The sharpest gap came in post-season direction-change speed, where selected players ran clearly faster than non-selected ones. How much a player improved did not predict selection, Preissler notes, so current level mattered more than progress.
Catalog record
| CREATOR | Artur Avelino Birk Preissler, Filipe Manuel Clemente, Júlio Brugnara Mello, Ana Filipa Silva, Rui Miguel Silva, Pedro Schons |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 37 KB |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |