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A surge of interest in or barefoot, training has seen runners around the world kick off their arch supporting,
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Top scientists from sports physicians to podiatrists to evolutionary biologists are jumping in too.

At a recent sports science conference in London, hundreds of participants, many of them shod but a few daringly barefooted, flocked to a two hour long discussion about the merits or otherwise of running without shoes.

a really polarized debate there are what you might call the barefoot evangelicals on one side and the aggressive anti barefoots on the other, says Ross Tucker, an expert in exercise physiology at South Africa University of Cape Town and a middle and long distance running coach.

The current barefoot trend has its roots in the book Born to Run, by Christopher McDougall. In it,
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The debate centers on whether running in shoes with cushioned heels and supportive structures changes the way people move so dramatically that it more likely to cause injuries,
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Proponents of barefoot running say the natural way is more likely to prompt a runner to land on the padded and springy part of the foot, toward the front, rather than strike the ground with the heel as many shod runners do.

In a study published in the scientific journal Nature last year, Daniel Lieberman, an evolutionary biology professor at Harvard University,
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Lieberman and colleagues from Britain and Kenya studied runners who had always run barefoot,
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They found that barefoot endurance runners often land on the fore foot before bringing down the heel, while shod runners mostly rear foot strike, prompted by the raised and cushioned heels of modern running shoes.

In a series of analyses, they found that even on hard surfaces, barefoot runners who fore foot strike generate smaller forces less impact than rear foot strikers in shoes. Barefoot runners also had a springier step and used their calf and foot muscles more efficiently.

Lieberman,
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lot of people are arguing on the basis of passion, anecdote, emotion or financial gain but what quite true is there are no good data saying whether it better for you or worse for you, he said.

Having said that, he has already voted with his feet.

As has fellow biology professor Daniel Howell, who teaches human anatomy and physiology at Liberty University in the United States.

Howell, dubbed the Barefoot Professor by his students after he began living his life 95 per cent shoe free, admits he an extremist. It the most natural way to be, he told the conference. and running are extremely complicated from a biomechanical perspective . and if you add a device to your foot,
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Back in 1960 Ethiopia Abebe Bikila, one of the world greatest Olympic marathon runners, won the first of his consecutive gold medals without shoes,
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Simon Bartold, a sports podiatrist and international research consultant for the sports brand Asics, says most athletes,
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come down pretty heavily in favour of footwear,
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A nifty rebranding of the trend to or running has opened up a potential new market in running shoes that promise to be the closest thing to wearing nothing at all.

For Howell,
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Toombs, whose clients often come to her with injuries or illnesses that are restricting their movement, is concerned that scientific rows about the biomechanics of foot strikes, and efforts by sports brands to cash in,
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Formerly an enthusiastic shod runner, she says training without shoes is partly about getting back to nature, but it also about learning a better way to run, using the body bounce and balance to improve form and reduce impact.

barefoot running . each time my foot strikes the ground, it lands slightly differently, she told Reuters. other words it adjusting to what underneath it. It almost like dancing. But the moment I put shoes on, most of that sensitivity is gone.