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  3. New research from the University of Missouri has found that people who walk dogs are more consistent about regular exercise and

New research from the University of Missouri has found that people who walk dogs are more consistent about regular exercise and

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问题     New research from the University of Missouri has found that people who walk dogs are more consistent about regular exercise and show more improvement in fitness than people who walk with a human companion. In a 12-week study of 54 older adults at an assisted living home, 35 people were assigned to a walking program for five days a week, while the remaining 19 served as a control group. Among the walkers, 23 selected a friend or spouse to serve as a regular walking partner along a trail laid out near the home. Another 12 participants took a bus daily to a local animal shelter where they were assigned a dog to walk.
    To the surprise of the researchers, the dog walkers showed a big improvement in fitness, while the human walkers began making excuses to skip the workout. Walking speed among the dog walkers increased by 28%, compared with just a 4% increase among the human walkers.
    "What happened was nothing short of remarkable, " said Rebecca A. Johnson, a nursing professor and director of the Research Center for Human Animal Interaction at the University of Missouri’s College of Veterinary(兽医的)Medicine. "The improvement in walking speed means their confidence in their walking ability had increased and their balance had increased. To have a 28% improvement in walking speed is unbelievable."
    Ms. Johnson said that because some people are afraid of dogs, the participants were given the choice of walking with a human or a dog as the companion. Ms. Johnson said the dog walkers were far more consistent in sticking with the program than those who were walking with humans.
    The response from participants in the dog-walking group — and their dog companions — was very different.
    Ms. Johnson said she suspects differences will show up in other areas, like depression and anxiety, although that data are still under review and the final study has not yet been published.
    But there were also other subtle indicators of improvement among the dog-walking group. Many people in the dog-walking group stopped using canes and walkers. "They would say, ’Now I’m physically fit enough to take my dog for a walk’, " Ms.Johnson said.
What do we know about some subtle improvement of the dog-walking group?
选项 A、Many people lean on dogs instead of walking tools while walking.
B、People consider the dogs their belongings and don’t want to share.
C、Besides physical fitness, some people now have high spirits as well.
D、People start to leave the assisted living home to help Ms. Johnson.
答案C
解析 根据题干关键词subtle．improvement，dog-walking group定位到未段。第二、三句提到；Many people in the dog-walking group stopped using cane and walkers．“They would say．‘Now I’m physically fit enough to take my dog for a walk’，”Ms．Johnson said．与狗一同散步的组里有很多人不再使用拐杖，而且他们会说“我现在很健康，完全可以去遛狗”。可以看出．这人不仅身体健康得到了改善．而且精神饱满．故选C)项。
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