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The occurrence of repeated high acceleration ability (RHAA) in elite youth football
Serpiello, Fabio R. Duthie, Grant M. Moran, Codey Kovacevic, Damian Selimi, Erch Varley, Matthew C.
Serpiello, Fabio R.
Duthie, Grant M.
Moran, Codey
Kovacevic, Damian
Selimi, Erch
Varley, Matthew C.
Abstract
The aim of the present study was to investigate the occurrence of Repeated High-Acceleration Ability (RHAA) bouts in elite youth football games using 10-Hz GPS devices and two relative thresholds derived from players’ actual maximal acceleration. Thirty-six outfield soccer players (age 14.9±0.6 years) participated in the study. Players wore 10-Hz GPS units during 41 official games. High accelerations were defined as efforts commencing above a threshold corresponding to 70% (T70%) or 80% (T80%) of the average 5-m acceleration obtained during a 40-m sprint test; RHAA bouts were defined as ≥3 efforts with ≤45 s recovery between efforts. Results were analysed via generalised linear mixed model and magnitude-based inferential statistics. On average, 8.0±4.6 and 5.1±3.5 bouts were detected in an entire game using T70% and T80%, respectively. When all positions were analysed together, there was a very-likely small difference in the number of RHAA bouts between first and second half for T70% and T80%, respectively. RHAA bouts occur frequently in elite youth football, with small differences between halves and between playing positions within the first or second half in most variables assessed.
Keywords
acceleration, youth football, match analysis, high-intensity efforts, sprint
Date
2018
Type
Journal article
Journal
International Journal of Sports Medicine
Book
Volume
39
Issue
7
Page Range
502-507
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Event URL
Open Access Status
License
File Access
Controlled