肚脐位置决定你的运动能力

　In the pool, meanwhile, whites have the advantage because they have longer torsos, so their belly-buttons sit lower on the body.

　　相比之下，在游泳项目上，白人较长的躯干和位置较低的肚脐是有利条件。

　　"Swimming is the art of surfing the wave created by the swimmer,"said the professor. "The swimmer who makes the bigger wave is the faster swimmer, and a longer torso makes a bigger wave. Europeans have a three-percent longer torso than West Africans, which gives them a 1.5-percent speed advantage in the pool," he said.

　　该教授说：“游泳是冲浪艺术。游泳者制造浪花。浪花造的越大，游得就越快。游泳者的躯干越长，就越容易制造大朵浪花。欧洲人的躯干一般比西非人长3%，这就使得他们游泳时有1.5%的速度优势。”