One in five trail running race entrants sustained an injury in the 12 months training period before the 2021 Mac Mac ultra race

DATA AVAILABILITY: Data are available upon reasonable request.BACKGROUND : Trail running is characterised by large elevation gains/losses and varying uneven running surfaces. Limited literature is available to help guide injury prevention strategies among trail runners. The purpose of this study was to determine the epidemiology, clinical characteristics, and related risk factors for running-related injuries (RRIs) amid trail runners who entered the 2021 Mac Mac Ultra races. METHODS : DESIGN : Descriptive cross-sectional study. SETTING : 2021 Mac Mac Ultra Race. PARTICIPANTS : Consent for data analysis was given by 251 of 330 (76%) race entrants. MAIN OUTCOME MEASURES : Point prevalence (%), frequency (n, %), retrospective annual incidence (RRIs/100 athlete-years), characteristics (pathology type, tissue type, body area, anatomical region), and associated injury risk factors (training and demographic variables) of RRIs. RESULTS : In the sample, the retrospective annual incidence was 19.92/100 athlete-years. The point prevalence was 4%. Injuries mostly appeared in the lower limb (95%), with the lower leg (26%), thigh (22%), ankle and foot (13%) described as the highest injured body areas. Of tissue type injuries, muscle/tendon comprised 60%. Muscle injury (36%), tendinopathy (24%), and joint sprain (9%) were the most reported pathology types. No related injury risk factors were discovered in this study. CONCLUSIONS : One in five trail runners reported one or more RRI during the 12 months before a competitive event. RRIs commonly involved the low.https://www.mdpi.com/journal/applsciPhysiotherapySports MedicineStatistic

One in four trail running race entrants sustained an injury in the 12 months training preceding the 2019 SkyRun race

OBJECTIVE : To determine the epidemiology and clinical characteristics of RRIs among trail runners who entered the 2019 SkyRun races. DESIGN : Descriptive cross-sectional study. SETTING : 2019 SkyRun races. PARTICIPANTS : Consent for data analysis was given by 305 of 412 (74%) race entrants. MAIN OUTCOME MEASURES : Retrospective annual incidence (RRIs/1000 h), point prevalence (%), frequency (%), characteristics (anatomical region, body area, tissue type, pathology type) and injury severity (mean severity score; 95% CI) of RRIs. RESULTS : 28.2% of participants reported at least one RRI. The retrospective annual incidence was 49.5 RRIs per 1000h and the point prevalence was 1.3%. Most injuries occurred in the lower limb (87.3%), with the knee (26.5%), ankle (21.6%), and foot (16.7%) reported as the most frequently injured body areas. Muscle/tendon accounted for 44.1% of tissue type injuries. Tendinopathy (27.5%), joint sprain (19.6%), and muscle injury (15.7%) were the most common pathology types reported. The mean injury severity score was 31.6. CONCLUSIONS : One in 4 trail runners reported at least one RRI in the 12 months leading up to a race. RRIs mostly affected the lower limb specifically the knee, ankle and foot. Future research should establish injury risk factors to ultimately develop specific injury prevention strategies.http://www.elsevier.com/ptsp2021-11-24hj2021PhysiotherapySports MedicineStatistic