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A comprehensive warm-up programme to prevent injuries in female youth football
ISRCTN ISRCTN10306290
DOI 10.1186/ISRCTN10306290
ClinicalTrials.gov identifier
EudraCT number
Public title A comprehensive warm-up programme to prevent injuries in female youth football
Scientific title A comprehensive warm-up programme to prevent injuries in female youth football: a cluster randomised controlled trial
Acronym N/A
Serial number at source N/A
Study hypothesis The risk of injury is high in female football. The most common injuries occur in the lower extremities, to the foot, ankle, knee, thigh and groin. The most common injury types are strains, sprains and contusions. Female football players have a higher risk of severe injuries, such as ligament sprains in the knee, compared to male players.

The main objective of the study was to examine the effect of "The 11+", a comprehensive warm-up programme designed to reduce the risk of injuries in female youth football.
Lay summary
Ethics approval Ethics approval received from The National Committees for Research Ethics on the 3rd March 2007 (ref: S-06060).
Study design A multi-centre cluster randomised controlled trial
Countries of recruitment Norway
Disease/condition/study domain Injuries to the lower extremities due to football
Participants - inclusion criteria 1. Healthy girls 15 and 16 years of age
2. Playing for clubs from the south, east and middle of Norway
3. Organised by the regional districts of the Norwegian Football Association
4. Clubs had to carry out at least two training sessions per week, in addition to match play
Participants - exclusion criteria There were no exclusion criteria.
Anticipated start date 15/01/2007
Anticipated end date 21/10/2007
Status of trial Completed
Patient information material
Target number of participants 2500
Interventions This is a multi-centre cluster randomised controlled trial, where clubs were used as cluster unit and the injury recorders were blinded to the participants group allocation.

The intervention was a comprehensive warm-up programme over 20 minutes, which was to be carried out in all training sessions and matches throughout the study period (season of 2007). The programme consisted of running exercises combined with strength, balance and jumping exercises.

The players in the control group warmed up and trained as usual.
Primary outcome measure(s) Injuries to the lower extremity, measured (registered) prospectively throughout the data collection period (the football season of 2007 in Norway). The coaches registered injuries on registration forms sent in on a weekly basis.
Secondary outcome measure(s) Any injury, or an injury to the ankle, knee, or other body parts, measured (registered) prospectively throughout the data collection period (the football season of 2007 in Norway). The coaches registered injuries on registration forms sent in on a weekly basis.
Sources of funding Oslo Sports Trauma Research Center (Norway)
Trial website http://www.ostrc.no/en/Project/144---Spilleklar/
Publications 2008 results: http://www.ncbi.nlm.nih.gov/pubmed/19066253
Contact name Mr  Torbjørn  Soligard
  Address Oslo Sports Trauma Research Center
Norwegian School of Sport Sciences
P.O. Box 4014
Ullevaal Stadion
  City/town Oslo
  Zip/Postcode 0806
  Country Norway
Sponsor Oslo Sports Trauma Research Center (Norway)
  Address Norwegian School of Sport Sciences
P.O. Box 4014
Ullevaal Stadion
  City/town Oslo
  Zip/Postcode 0806
  Country Norway
  Tel +47 23 26 23 67
  Fax +47 23 26 23 07
  Email ostrc@nih.no
  Sponsor website: http://www.ostrc.no
Date applied 05/05/2008
Last edited 11/12/2008
Date ISRCTN assigned 12/05/2008
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