Running is a very repetitive movement, you take approximately 1000 steps every kilometer. Every time you hit the ground a force of 2-6x your body weight is put on your body. So, in order run your best and avoid injury, it is very important that each of those steps be as efficient as possible.
When running technique is discussed, we often talk about how the foot is contacting the ground (heel strike, midfoot strike, forefoot strike) BUT what is more important is where the foot is hitting the ground in relation to your body. It is not the heel striking that is bad, it is the over striding (landing with your foot out in front of you) that you want to avoid. Ideally, we are looking for a vertical shin angle at ground contact, basically the foot landing underneath your center of mass. See videos below to make this more obvious.
Wrong running motion |
Good running motion |
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