Generalisation and extrapolation
BMJ 2010; 340 doi: https://doi.org/10.1136/bmj.c717 (Published 11 February 2010) Cite this as: BMJ 2010;340:c717
- Philip Sedgwick, senior lecturer in medical statistics
- 1Centre for Medical and Healthcare Education, St George’s, University of London, Tooting, London SW17 0RE
- p.sedgwick{at}sgul.ac.uk
A randomised, cluster, controlled trial investigated whether a comprehensive warm up programme prevented injuries in football players. Control treatment was the standard warm up programme. Football clubs were randomised to the intervention or control group. At each club, young female players aged 13 to 17 years followed the club’s allocated programme for one season.
The number of overall injuries was statistically significantly reduced by the comprehensive warm up programme when compared with standard warm up. However, there was no difference between treatment groups in the number of injuries to the lower extremities (foot, ankle, lower …
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