Methods matter and the 'too much, too soon' theory (part 2): what is the goal of your sports injury research? Are you describing, predicting or drawing a causal inference?
1 Department of Public Health, Section for Sports Science, Aarhus University, Aarhus, Denmark roen@ph.au.dk mansournia_ma@yahoo.com.
2 Research Unit for General Practice, Aarhus, Denmark.
3 Department of Public Health, Aarhus University, Aarhus, Denmark.
4 Sport and Physical Activity Studies Centre (CEEAF), Faculty of Medicine, University of Vic-Central University of Catalonia (UVic-UCC), Barcelona, Spain.
5 Medical Department, Futbol Club Barcelona, Barça Innovation Hub, Barcelona, Spain.
6 School of Public Health, University of Sydney, Sydney, New South Wales, Australia.
7 Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran, Islamic Republic of roen@ph.au.dk mansournia_ma@yahoo.com.