Study population and recruitment
Inclusion criteria were teams (1) participating in the adolescent or adult 2020 series (male 5th–8th leagues (out of 8 leagues), female 3rd–5th leagues (out of 5 leagues), male and female 16–19 series) in one regional district (Östergötland) in Sweden), (2) with at least two scheduled training sessions per week. All players 14 years and older were eligible, including players who were injured at baseline.Coaches for eligible teams (Flow diagram over the inclusion in the study. F, female; IPEP injury prevention exercise programme; and M, male