title: Effects of 10-week eccentric overload training on kinetic parameters during change of direction in football players.
abstract: The aim of the current study was to analyse the effect of 10-week eccentric overload training on kinetic parameters during change of direction (COD) in U-19 football players. The outcome measured included relative peak braking (rPB) and propulsive force (rPF), contact time (CT), time spent during braking (BT) and propulsive phase (PT), relative total (rTOT_IMP), braking (rB_IMP) and propulsive (rP_IMP) impulses. Between-group results showed a substantial better improvement (likely) in CT (ES: 0.72) and BT (ES: 0.74) during side-step cutting, and in rPB (ES: 0.84) and rB_IMP (ES: 0.72) during crossover cutting, in the experimental group (EXP) in comparison to control group (CON). Within-group analysis showed a substantially better performance (likely to almost certain) in CT (ES: 1.19), BT (ES: 1.24), PT (ES: 0.70), rPB (ES: 0.75), rPF (ES: 0.68), rTOT_IMP (ES: 0.48) and rB_IMP (ES: 0.50) in EXP during side-step cutting. Regarding crossover cutting, within-group analysis showed a substantial better performance (likely to almost certain) in CT (ES: 0.75), rPB (ES: 0.75), rPF (ES: 1.34), rTOT_IMP (ES: 0.61), rB_IMP (ES: 0.76) and rP_IMP (ES: 0.46) in EXP. In conclusion, the eccentric overload-based programme led to an improvement in kinetic parameters during COD football tasks.
authors.affiliation: a Fitness Section , Sevilla Football Club , Seville , Spain.|b Department of Physical Education and Sport , University of Seville , Seville , Spain.
authors.forename: Moisés
authors.initials: M
authors.lastname: de Hoyo
authors.affiliation: b Department of Physical Education and Sport , University of Seville , Seville , Spain.
authors.forename: Borja
authors.initials: B
authors.lastname: Sañudo
authors.affiliation: b Department of Physical Education and Sport , University of Seville , Seville , Spain.
authors.forename: Luis
authors.initials: L
authors.lastname: Carrasco
authors.affiliation: a Fitness Section , Sevilla Football Club , Seville , Spain.
authors.forename: Jesús
authors.initials: J
authors.lastname: Mateo-Cortes
authors.affiliation: a Fitness Section , Sevilla Football Club , Seville , Spain.
authors.forename: Sergio
authors.initials: S
authors.lastname: Domínguez-Cobo
authors.affiliation: c Department of Sport Science , University of Evora , Evora , Portugal.
authors.forename: Orlando
authors.initials: O
authors.lastname: Fernandes
authors.affiliation: a Fitness Section , Sevilla Football Club , Seville , Spain.
authors.forename: Juan J
authors.initials: JJ
authors.lastname: Del Ojo
authors.affiliation: d Faculty of Health Sciences , University of San Jorge , Zaragoza , Spain.
authors.forename: Oliver
authors.initials: O
authors.lastname: Gonzalo-Skok
mesh_terms: D000293:Adolescent; D054874:Athletic Performance / Q000502:physiology; D006801:Humans; D008297:Male; D009048:Motor Skills / Q000502:physiology*; D059385:Plyometric Exercise; D055070:Resistance Training / Q000379:methods*; D012916:Soccer / Q000502:physiology*
keywords: Maximal power output; crossover cutting; eccentric overload; side-step cutting