1. Numerous studies show that children who engage in regular physical activity do better in school than their inactive classmates.
    许多研究表明，经常进行体育锻炼的孩子，在学业上比他们那些不活动的同学优秀。

2. Her study of 62 formerly inactive women who began exercising three times a week for six months was published in the journal Medicine & Science in Sports & Exercise.
    她对62名妇女进行了研究，并将研究结果发表在《体育运动医学与科学》杂志上。这些妇女原先不怎么运动，后来开始了为期六个月、每周三次的锻炼。

3. "We found that women who were normally inactive and then started a program of moderate exercise showed evidence of iron loss," says Roseanne M. Lyle, associate professor at Purdue.
    "我们发现，那些通常不运动的女性一旦开始适度的锻炼，就会出现铁离子含量下降的迹象，" 珀杜大学罗斯安妮·M.莱尔副教授说。

4. "The animals that learned to go through the obstacle course exhibited a greater number of brain connections than the animals in the exercised or inactive groups," Greenough said.
    "与跑动的和不运动的老鼠相比，经过越障训练的老鼠脑神经联结数更多。" 格里诺说，

5. Second, seniors should start under the guidance of a qualified teacher to make sure they're doing exercises properly and not doing too much, too soon — especially if they've been inactive.
    第二，老年人应在合格的教练指导下开始锻炼，以保证锻炼适度，既不过量，也不过速，尤其是在他们过去一直未作运动的情况下。

6. Measurements made by Arthur Kramer at the University of Illinois demonstrated that inactive adults, aged 63 to 82, could hit buttons faster in response to a tone after they went through a 10-week water exercise course.
    伊利诺伊大学阿瑟·克雷默测量的结果证明，63至82岁的不运动的成年人，在完成为期十周的水上运动课程之后，听音击键的反应加快了。

7. One group was exercised by running inside an automatic wheel, a second group improved their skills in a complicated obstacle course, and a third group was inactive.
    第一组在自动轮中跑动，第二组通过一种复杂的越障训练来提高技能，第三组则不做任何运动。