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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.
The small muscles in the feet are important for the larger muscles to______.
选项 A、absorb forces
B、strengthen the bones
C、prevent the over-exertion of the latter
D、activate the neural cycle
答案C
解析 第五段讲到“Without the information provided by the small muscles…to maintain and repair themselves”，即如果没有这些小型肌群传导的信息，那么大型肌群很可能会因过度拉伸或过度使用导致不能自身修复。所以小型肌群传导信息，可以防止大型肌群过度拉伸，故选C。
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