1. 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。