Comparison of select characteristics of those reporting an exercise-related injury in the prior 12 months with those who had not been injured.

Data are reported as mean ± SD except for group percentages.a Running experience was based upon the year the subject started running at least 3 days per week.b Ultramarathon running experience was based upon year first ultramarathon was run.c High intensity was defined as "will break a sweat after 3–5 minutes; breathing is deep and rapid; can only talk in short phrases."d An affirmative response meant the subject had regularly performed resistance training for at least a continuous 3-month period of time.