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02-13-09, 05:21 AM
Here is a paragraph from one of my aquatics newsletters. I would really like to know more about runners compared
The ACLS includes extensive medical and physical activity data on more than 40,000 men, age 20-90 years. “These lower rates in swimmers compared with walkers and sedentary men might well be expected,” comments Dr. Blair, “but it is surprising that we also observed lower mortality in swimmers than in runners,” he adds. “Therefore, swimming appears to be a healthful alternative to other types of physical activity.” The study population was limited to white, well-educated, middle- to upper-class men. While this limits the generalizability of the study, it should not affect the study’s internal validity, advises Blair. He explains that, “there is no compelling reason to assume that the benefits of swimming would be different for women or for men in other socioeconomic groups. In an earlier study in this same population we found that both women and men had similar benefits from swimming in terms of fitness and other health indicators.”
The ACLS includes extensive medical and physical activity data on more than 40,000 men, age 20-90 years. “These lower rates in swimmers compared with walkers and sedentary men might well be expected,” comments Dr. Blair, “but it is surprising that we also observed lower mortality in swimmers than in runners,” he adds. “Therefore, swimming appears to be a healthful alternative to other types of physical activity.” The study population was limited to white, well-educated, middle- to upper-class men. While this limits the generalizability of the study, it should not affect the study’s internal validity, advises Blair. He explains that, “there is no compelling reason to assume that the benefits of swimming would be different for women or for men in other socioeconomic groups. In an earlier study in this same population we found that both women and men had similar benefits from swimming in terms of fitness and other health indicators.”