■■■ NY Timesの記事 ■■■
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題名: Is the Exercise Cool-Down Really Necessary?
記者: By GINA KOLATA
発行日: October 15, 2009
URL: http://www.nytimes.com/2009/10/15/health/nutrition/15best.html
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【Answers to Content Questions/内容についての質問の正解】
1 When about a mile from their house they sprint to see who can reach
home first.
2 Cool-down is to keep moving for a few minutes after you finish a
strenuous exercise rather than stopping abruptly.
3 Some say it alleviates muscle soreness and others say it prevents
muscle tightness or relieves strain on the heart.
4 If you suddenly stop exercising your heart slows down and the blood
can pool in your legs and feet causing you to feel dizzy and possibly
fainting.
5 The idea of the cool-down seems to have originated with a popular
theory --now known to be wrong--that muscles become sore after
exercise because they accumulate lactic acid.