[未归类] Argument168 三天内拍我者我必拍之 [复制链接]

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电梯直达

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发表于 2005-7-23 09:03:58 |只看该作者 |倒序浏览

168 Typically, as people age, their bone mass decreases, making them more vulnerable to bone fractures. A recent study concludes that the most effective way to reduce the risk of fractures in later life is to take twice the recommended dose of vitamin D and calcium daily. The three-year study followed a group of French women in their eighties who were nursing-home residents. The women were given daily supplements of twice the recommended dose of vitamin D and calcium. In addition, the women participated in a light weightlifting program. After three years, these women showed a much lower rate of hip fractures than is average for their age.

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The arguer recommends that in order to reduce the risk of fractures, the most effective way is to take twice the recommended dose of vitamin D and calcium daily. To support his recommendation, the arguer has cited a three-year study of a group of women in their eighties who take the advise of the arguer and shows a much lower rate of hip fractures than the average of the same age. However, this subject has several flaws contained in and lead to a specious and doubtful conclusion.

First of all, the study which the arguer has cited lacks of evidence to show its validity. This study is done among the women in their eighties whereas the arguer has a conclusion that taking vitamin D and calcium daily is the most effective way to people in their later life, no matter they are men or women. There is not proof to make us convince that the pills useful to the woman may have the same effects to man. The arguer also fails to point out the sample of the study is random and the number of the participants is sufficient enough. Maybe the samples come from only one district and the women there are stronger and healthier than the average ones of the nation. And maybe the group of women is only a small account which cannot be representative of the whole.

Secondly, even the study is valid, the arguer has ignored the effects of the light weightlifting they are taking while taking the pills of vitamin D and calcium at the same time. The arguer makes a false conclusion without ruling out the effects of the light weightlifting. There is possibility that the light weightlifting is more effective than the medicine, or they have the same effects. If what I have assumed is right, the medicine will not be the most effective way and people may incline to take light weightlifting as the cure. The arguer makes a false conclusion without ruling out the effects of the light weightlifting.

Moreover, granted the medicine is the effective element, the arguer also fails to make a contrast between the doses of it. Is twice a day the best dose to cure the disease? Without accurate survey, we cannot get the conclusion like that. Maybe three times a day plays a much better effect and cure the disease in a quicker way. Taking medicine once a day is also possible as the most effective method in consideration of the negative aspects of it.

Finally, the arguer makes a serious mistake at the last of the subject. The much lower rate of the hip fractures of the participants than the average women in the same age makes a vague contrasting. The lower rate of hip fractures does not mean the lower rate of all fractures. Maybe the medicine is effected in only one kind of fractures, or the rate of hip fractures is lowed by the light weightlifting. There are many possibilities and without ruling out which, we can not get the final conclusion that the arguer's advice is the most effective way.

In sum, the arguer need more evidence and study to make his conclusion valid and accurate.

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