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  3. Walking Barefoot Can Help Prevent Some Injuries Walking barefoot helps to improve balance,posture and prevent common foot in

Walking Barefoot Can Help Prevent Some Injuries Walking barefoot helps to improve balance,posture and prevent common foot in

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问题                 Walking Barefoot Can Help Prevent Some Injuries
    Walking barefoot helps to improve balance,posture and prevent common foot injuries,according to an American researcher. Patrick McKeon,a professor at Ithaca College’ s School of Health Sciences in New York, says the more people go barefoot at home, in the office or outside, the healthier their feet will be.
    He believes the small,often overlooked muscles in the foot play a vital but underestimated role in movement and stability, similar to the core muscles in the abdomen.
    The researcher explained their importance by describing the cycle of feedback between the large "extrinsic"(外在的)muscles in the legs and feet, the smaller "intrinsic"(内部的)muscles in the feet,and the neural connections that send information from them to the brain. When this cycle is broken,it can lead to overuse injuries that most athletes are familiar with.
    Shoes can also have a negative effect on this cycle, McKeon explained. " When you put a big sole underneath,you put a big dampening effect((阻尼效应)on that information. There’s a missing link that connects the body with its environment. "
    Without the information provided by the small muscles in the foot, the larger muscles over-compensate and over-exert beyond the point of their natural ability to maintain and repair themselves. And when these muscles are no longer able to absorb the forces of activity, the forces are transferred to the tendons(肌腱), bones and ligaments(韧带), resulting in an increased risk of injury.
    McKeon says the only way of reintroducing this link and reactivating the cycle is to take off our shoes and strengthen the muscles in our feet by walking barefoot.
Most athletes suffer from______.
选项 A、muscle injuries in the arms
B、overuse injuries in the feet
C、ner\e injuries in the heads
D、bone injuries in the shoulders
答案B
解析 根据第三段可知，研究说明了腿部的大型外在肌群和足部小型内在肌群之间存在一种信息传达反馈的循环，中枢神经会把信息传达至大脑，但是如果这种循环受损，就会造成运动员常见的过度使用性损伤。故选B。
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