What is your thought on the whole heel vs. mid-foot vs. forefoot strike topic?
One of the admins of a running group I help coach just posted an article on our Facebook page that generally talks about heel striking as a bad move and that you should alter it in order to avoid injury. Following that right up, a member of the group who is a running coach and physical therapistreplied arguing that heel striking has never been correlated to higher injury risk and she used a study to support her claim.
The study I believe she used was Hasegawa, 2007 (she only said "a 2007 study," but the stats she uses match up). This study looked at elite athletes at the 15km mark of a marathon and classified everyone as either heel, mid-foot, or forefoot striker. Then, it compared that to ground contact time to foot strike and finish time to find any significant correlations. Overall, it showed that heel striking had a much longer ground contact time and correlated to a slower running pace.
She simply used the fact that 74% of the field was heel striking at the 15km mark as her evidence that heel striking is perfectly okay. She ignored, however, that as you limit the field to faster runners, that percentage decreases and mid-foot increases and that the study never talks about foot strike in the confines of injury.
So I responded correcting her conclusion on the study and using another study - Daoud, 2012 - as counter to her argument. The article was also brought up on Runner's World.
This study retrospectively analyzed collegiate cross country athletes, their foot strike patterns, and their injury history. Overall, 74% of the athletes had a moderate to severe injury throughout the year and of the injured athletes, those with a heel strike has double the injury rate independent of sex, race distance, and weekly mileage. However, the study does not point out a cause of injury, simply a correlation.
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Questions
1. What are your thoughts on the foot strike controversy?I personally believe a move away from heel striking is a move towards a lower injury rate.
2. Have you ever attempted changing or simply analyzing your foot strike?
I spent a lot of 2011 changing over to a mid-foot strike.
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