They used a mathematical model of the leg to study the effects of heel length on long-distance running ability.
他们使用腿的数学模型研究了脚后跟长度对长跑能力的影响。
It didn't look at shoe heel height, it looked at anatomical heel length, the distance from the back of your ankle joint to the insertion of the Achilles tendon.
他没有着眼于鞋子的高度，他考虑的是脚后跟长度的结构，从踝关节背面到跟腱的附着距离。
The length of time a person can wear a heel depends on the individual - a good rule of thumb is not to wear any shoe for more than an hour after your feet start to hurt.
每个人可以穿着高跟鞋的时间长短取决于个人——有一个对脚趾较好的原则就是在你的脚开始受伤后不要穿任一双鞋子超过一个小时。
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