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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

admin2013-08-22  42
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.
To the surprise of the researchers, the dog walkers______.
选项 A、became significantly fitter
B、avoided the workout a lot
C、maintained the same walking speed
D、insisted on raising dogs as pets
答案A
解析 根据题干关键词to the surprise of the researchers定位到第二段第一句：To the surprise of the researchers．the dog walkers showed a big improvement in fitness…可知，让研究人员感到惊奇的是，与狗一同散步的人健康状况显著提高，故选A)项。
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