Running - The Healthy Fact

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                           People who run barefoot learn to minimize impact shock, adopt a different style of running form those people who run in shoes, according to a research. This could help us to understand the impact related injuries suffered by a high percentage of runners. Daniel lieberman and colleagues at Harvard the university used kinematic and kinetic analysis to observe runners who were either habitually bare fore or who generally wore shoes. Both groups were asked to run wearing shoes and barefoot. High –speed camera footage was used to observe exactly how their feet moved. They also volunteers to run over a force plate, to analyse hip forces were transmitted during different kinds of running.


                               There are three ways your feet can land when you are running – landing on the heel first, when the heel and ball of the foot land simultaneously, when the ball on the foot lands before the heel comes down. Sprinters and the habitually bare fore seem to use mainly forefoot or mid-foot strike, while endurance runners (and the majority of joggers) use rear-foot strike.

                           Landing on the forefoot first, helps to reduce the amount of the body’s mass that needs to come to a full stop per step, and considering that most runners will strike the ground around 60 time per kilometre, this is significant for the likelihood of developing repetitive stress injuries humans send their ancestors have probably been running ever since we adapted to using our lower limbs for movement, and only in running shoes for the last 40 years or so. Evidence from the structure of the modern human foot suggest that it is adapted to get the best out of forefoot strike running, reducing the likelihood of stress injury and offering a selective advantage. As the incidence of running injuries remains significant despite advances in footwear technology, it seems that even the best shoes may not be as good for you as no shoes set all!

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