What happens to our feet when we run in sneakers
New research in the field of running mechanics has shown that presumably sneakers work as light shock absorbers and at the same time change the congenital elasticity of the foot. Just this happens a bit differently as we thought before.
In order to trace the effect of running sneakers on a foot, researchers from the University of Queensland gave 16 healthy volunteers intramuscular electrodes that recorded muscle activity of their stop. After that, they asked the experiment participants to run in sneakers and barefoot on the treadmill equipped with pressure sensors. Special attention was paid to the longitudinal muscles of the foot of the foot, which work as springs, shrinking at the moment when the feet applies to the ground, and squeezing during the shock.
As a result, it turned out that when running in sneakers, these "springs" do not work in full force: about 25% less than when running barefoot. This once again confirmed that sneakers soften every feet of the feet of the Earth.
Bega barefoot adepts usually use this argument in disputes, proving that running sneakers lead to a decrease in muscle activity, atrophy and injuries. But in practice it turned out that the sneakers of the foot muscles work even more than while running barefoot.
To deal with the data obtained, the researchers relied on the results of previous experiments. During those studies, the muscles were stimulated using electrodes. It turned out that the foot muscles work as a whole, and not separately. The researchers suggested that with the support of the foot of the foot sneakers, the foot muscles eventually have to make more efforts to achieve an additional rigidity of the system as a whole.
When the researchers applied the received data to various mechanical models, it was found that the most optimal option in which running sneakers act as a spring, working together with the foot muscles. In other words, sneakers enhance the natural elasticity of the feet, and do not work by shock absorbers.
At the moment, make the final conclusions about the benefits of running in sneakers or running barefoot, as there are many more research ahead. Sneakers still have their advantages. In the course of previous studies, it turned out that our body at the level of reflexes is trying to maintain the rigidity of the leg during running. This may be caused by the fact that our brain uses the rigidity of the legs to hold the equilibrium and control the center of gravity when running. And since the sneakers add stiffness of the foot, the foot muscles must work even more, increasing the overall rigidity and reducing the probability of injury.
Further research should help us understand how different soles of sneakers affect the foot when running along various surfaces, for example, on concrete. In defense of sneakers, we can say that at the moment the scientists have concluded that changes in the biomechanics of the lower extremities when running in the shoes are not the result of a decrease or impairment of neuromuscular function. In other words, sneakers do not lead to strain stops or violations in their work.
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