Ochten, J. van

injury study runner marathon treatment factor ankle month sport training exercise questionnaire evidence follow-up patient effectiveness rotterdam marathon term follow-up outcome risk factors rotterdam extremity injuries baseline baseline questionnaire ankle sprain extremity activity complaint result 12 months effect incidence table prognostic factors model measure 3 month follow-up distance pain intensity return group information treatment groups knee injuries outcome measure analysis weight instability subgroup marathon runners trial sprain calf injuries post-race questionnaire number recovery population article ankle mobilisation difference outcome measures participant review education level bandage participation subgroup afs >40 prognostic subgroup afs ≤40 occurrence ankle sprains experience nonmusculoskeletal comorbidities balance problem characteristic ligament score william frequency