Running injury incidence and prevalence

30%
http://www.runresearchjunkie.com/can-mixing-up-the-running-shoes-prevent-overuse-running-injury/

32%
http://onlinelibrary.wiley.com/doi/10.1111/sms.12137/abstract

28%
http://www.runresearchjunkie.com/plantar-pressure-patterns-and-injury-prediction/