The absence of a systematic reduction in Injury frequency, despite decades of research has led to suggestions that the scientific method has been unsuccessful in resolving the problem of running injuries [3][4][5][6]. The Problem: Running Injury Statistics in the Past 40 Years are UnchangedRunning for recreation first became very popular in the1970s [7] and was followed soon after by studies on the prevalence of injuries in runners. Results of these studies varied, with injury incidence ranging between 15% and 85% [8-27] (Figure 1). However, there seems to be noapparent systematic change in injury incidence over time. Changes in the running populationThe runners in the 1970s and 1980s were different to the runners in the current millennium. The participants captured by studies performed in the 1970s and 1980s were dedicated runners, aiming to win, lean, primarily just trained by running, were mostly (75%) male [19], and were around mid thirties in age [8,12,15,19,26]. The runners in more recent studies are primarily recreational, running a marathon with the goal to simply finish, often overweight, often involved in cross-training activities in addition to running, and are around mid forties in age [9,10,24]. The majority of runners are also now female (54%). The populations studied in various epidemiological investigations also differ, with some comprising novice runners and others comprising competitive runners [10,23,24]. These differences in the populations studied confound injury frequency Current OpiniOnCheck for updates