Waldron, Mark

Gray, Adrian

Murphy, Aron

2015

This study, firstly, established the between-match variability of soccer-match performance among under-14 players and, secondly, investigated the relationship between match performance variability and both maturity and chronological age. Participants were recruited from two under-14 youth squads in England. The between-match variation of each player was quantified using the Coefficient of Variation (CV %) over a minimum of two and a maximum of five matches (N.=110). Measurements included passing frequency per minute, heart rate (bpm), post-match Rating of Perceived Exertion (RPE) and both total and high-intensity metres per minute (total m.min⁻¹ HIM m.min⁻¹, respectively), derived from Global Positioning Systems (GPS). Assessments of physical maturity (age at peak height velocity; APHV) were also conducted. Passes.min⁻¹ 15.2±5.4%) were the most variable, followed by HIM m.min⁻¹ 13.9±4.9%) and RPE (13.7±4.4 %). The least variable components were HR (4.1±2.6%) and total m.min⁻¹ (5.5±4.7 %). There were strong relationships between APHV and CV% of HIM m.min⁻¹ r=0.69, r²=0.47), APHV and CV% of average match HR (r=0.54, r²=0.29) and APHV and CV%of RPE (r=0.63, r²=0.40). Physical maturity, but not the chronological age, of youth soccer players explains between 29% and 47% of the variance in components of match performance. Our findings reaffirm, for different reasons, the importance of differentiating between maturational status and chronological age when evaluating youth soccer players' performance.

Gazzetta Medica Italiana Archivio per le Scienze Mediche, 174(4), p. 173-180

1827-1812

0393-3660

https://hdl.handle.net/1959.11/17857

en

Edizioni Minerva Medica

Variability in selected components of youth soccer match performance relates to physical maturity but not to chronological age

Journal Article

Publication