文章提到了2007年的一项研究，该研究人员发现相同品牌中低价位的气垫跑鞋跑步效果甚至比高价位的气垫跑鞋的效果更好。
The article mentions a 2007 study in which researchers found that low- and midcost shoes within the same brand cushioned runners' feet just as well as high-cost ones -- sometimes even better.
文章提到了2007年的一项研究，该研究人员发现相同品牌中低价位的气垫跑鞋跑步效果甚至比高价位的气垫跑鞋的效果更好。
The article mentions a 2007 study in which researchers found that low- and midcost shoes within the same brand cushioned runners' feet just as well as high-cost ones -- sometimes even better.
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