Since your childhood, you have worn shoes. You may even remember your first pair of sneakers, your first pair of sneakers:a thick sole and a foam camisole up to the base of the ankle. In some parts of the world, we do not wear shoes. Recent studies have shown that walking barefoot caused far less harm to the human body than walking footwear. Explanation.
Three Truths About Our Padded Shoes
– Running in running subjects the joints and skeleton to more stress than walking with stilettos
– 9 out of 10 athletes complain of joint pain during their preparation for a marathon
– Wearing padded and padded shoes Foam is not based on any scientific
Brief History of Sports Shoes
Some 200,000 years ago, our cousin the monkey stood on his fore legs to become the homo erectus that we know:it is then barefoot that it traverses its territory. It was not until about 8000 BC that the first forms of shoes appeared – sandals braided in vegetable matter in all likelihood.
Let us make a great leap forward. It was at the end of XIX th century that are created in the United States the first rubber-soled shoes, and in 1974 appeared on the sports fields of the world the first cushioned sports shoes:the Nike WAFFLE TRAINER. For the anecdote, Nike co-founder and athletic coach Bill Bowerman developed the material that was used to make a heavy-duty, tough, urethane- Would revolutionize the basketball. The sole thus created, supple and cushioning, now pushes the riders to attack their movement by the heel and no longer by the front of the foot.
In early 2005, Vibram launched its FIVE FINGERS: a sports shoe with toes and extra-fine sole. A few months later, it was Nike’s turn to invest the market of minimalist shoe (or barefoot:barefoot) with its model FREE.The barefoot now represents a $ 1.7 billion industry.
In 2012, the bare foot is trendy. And profitable.
Running Vs. Barefoot
When you run in running with vintage footwear, your foot is pointed upwards when it touches the ground:it is on the heel that the initial contact occurs – causing along the leg an impact up to three times the weight Of your body. The heel-to-ground impact is nearly 600 times per kilometer. Coincidentally or not, Achilles heel fractures have increased by 10% since the 1970s, when padded shoes began to appear. Medical surveys have also shown that running with traditional sneakers accentuated the stresses due to the internal rotation of the hips of 54%, those due to the flexion of the knees of 36% and those due to their gap of 38%.
While running barefoot (or shoeing minimalist shoes, or barefoot ) on the other hand, the foot is more relaxed when it touches the ground: the reception is therefore on the metatarsal eminence (the joint between the toes and the sole of the foot ). This will flatten out at the moment of contact, thus absorbing the shock. The energy expended in running barefoot would be reduced by 4% .
The barefoot , however, retain some caveats. Although minimalist footwear dampens more than a bare foot, shock remains a shock and remains harmful to the joints – a fortiori if repeated very often as in the case of running (nearly 600 shocks Foot-ground per kilometer run). In addition, barefoot or minimalist running can increase the pronation of the foot and promote the risk of injuries to the hindfoot (sprain, trauma, fracture). A pronation is called the inward movement of the foot when walking or running: this movement reduces the impact of the initial contact between the foot and the ground. The degree of pronation varies from person to person, but a foot that is not maintained or not used to barefoot and therefore not strong enough to tone may tend to become over-pronator and risk more injuries.
Be careful though. Do not immediately rush to a pair of Vibram FIVE FINGERS or Merrell BAREFOOT for your next trail or Sunday marathon:the transition to a minimalist shoe must be done gradually – in a few months. Allow time for your body to get to the mechanical changes and your foot and ankle to adapt to new joint and muscular requirements.
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