Physiological and performance responses to the FIFA 11+ (part 2): A randomised controlled trial on the training effects

Franco M. Impellizzeri, Mario Bizzini, Jiri Dvorak, Barbara Pellegrini, Federico Schena, Astrid Junge

Research output: Contribution to journalArticlepeer-review


The aim of this study was to examine the training effects of an injury prevention programme on neuromuscular control, strength and performance in male amateur football players. Eighty-one players were allocated to the "FIFA 11+" (n = 42) or a control group (CON, n = 39). The "FIFA 11+" group performed the programme 3 times a week for 9 weeks; the control group completed the usual warm-up. Primary outcomes were: time-to-stabilisation test and eccentric/concentric flexors strength. Secondary outcomes were: eccentric/concentric extensors strength, star excursion balance test, core-stability test, vertical jump, sprint, and agility. After controlling for covariates, significant between-group differences after the intervention (in favour of the "FIFA 11+" players) were found for time-to-stabilisation (-2.8%, 90% confidence interval [CI] -4.4 to -1.2%) and core-stability (-8.9%, -14.6 to -3.1%). Differences were also found for eccentric (3.8%, 1.4 to 6.2%) and concentric flexors strength (3.2%, 0.6 to 5.9%) at 60° · s-1 but this difference was only possibly meaningful (62.4%) from a practical point of view. No substantial and/or significant differences were found for the other outcomes. Performing "FIFA 11+" for 9 weeks can improve neuromuscular control. Possible worthwhile differences were found for flexors strength but there were no substantial effects in the other performance measures.

Original languageEnglish
Pages (from-to)1491-1502
Number of pages12
JournalJournal of Sports Sciences
Issue number13
Publication statusPublished - Sep 2013


  • Injury prevention program
  • Neuromuscular control
  • Performance
  • Randomized controlled trial
  • Soccer
  • Warm-up

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Medicine(all)


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