Browsing by Author "Janse, Dina"

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    Frequency of Injury and Illness in the Final 4 Weeks before a Trail Running Competition
    (2021) Gajardo, Rubén; Monrroy, Manuel; Barría, Mauricio; Norambuena, Yessenia; Janse, Dina; Bascour, Claudio; Besomi, Manuela
    We aimed to (i) determine self-reported injury and illness frequency in trail runners 4 weeks preceding competition; (ii) compare athletes with and without injury/illness by sex, age, body mass index (BMI) and competition distance; (iii) describe mechanism of injury, anatomical region (injury)/organ system (illness) involved, consequences of injury on preparation and selfperception of injury severity; (iv) compare anatomical region (injury) and organ system (illness) by sex. A total of 654 trail runners (age 36.2, IQR 30.6–43.0; 36.9% females) participated in this retrospective cross-sectional study by completing a self-reported questionnaire. Injury and illness frequency rates were 31.3% (n = 205, CI: 27.7–35.0%) and 22.3% (n = 146, CI: 19.1–25.7%), respectively. No significant difference was found between injured vs. non-injured or ill vs. non-ill study participants by sex, age, BMI and competition distance. Regarding injuries, gradual onset (41.6%) and knee (33.2%) were the most indicated mechanism and anatomical region of injury. At least 85.4% of trail runners changed their training following injury and 79% indicated that their injury would affect their competition performance. Regarding illness, the respiratory tract was the most frequent organ system involved (82.9%). Male and female participants reported similar proportions of anatomical regions (injury) and organ systems (illness) affected. These results could help to generate education strategies and appropriate medical support before and during these competitions.
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    Trail running injury risk factors: a living systematic review
    (2021) Viljoen, Carel; Janse, Dina; Van Mechelen, Willem; Verhagen, Evert; Silva, Bruno; Scheer, Volker; Besomi, Manuela; Gajardo, Rubén; Matos, Sérgio; Schoeman, Marlene; Jansen, Audrey; Van Dyk, Nicol; Scheepers, Susan; Botha, Tanita
    Objective: To review and frequently update the available evidence on injury risk factors and epidemiology of injury in trail running. Design: Living systematic review. Updated searches will be done every 6 months for a minimum period of 5 years. Data sources: Eight electronic databases were searched from inception to 18 March 2021. Eligibility criteria: Studies that investigated injury risk factors and/or reported the epidemiology of injury in trail running. Results: Nineteen eligible studies were included, of which 10 studies investigated injury risk factors among 2 785 participants. Significant intrinsic factors associated with injury are: more running experience, level A runner and higher total propensity to sports accident questionnaire (PAD-22) score. Previous history of cramping and postrace biomarkers of muscle damage is associated with cramping. Younger age and low skin phototypes are associated with sunburn. Significant extrinsic factors associated with injury are neglecting warm-up, no specialised running plan, training on asphalt, double training sessions per day and physical labour occupations. A slower race finishing time is associated with cramping, while more than 3 hours of training per day, shade as the primary mode of sun protection and being single are associated with sunburn. An injury incidence range 0.7-61.2 injuries/1000 hours of running and prevalence range 1.3% to 90% were reported. The lower limb was the most reported region of injury, specifically involving blisters of the foot/toe

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