People walking with an erect gait produced footprints with nearly equal heel and toe depths, the team found.

研究小组发现，人们以直立步态行走时脚跟和脚趾深度几乎相同。

youdao

Nowadays, the design of shoes mean that we all tend to step heel to toe (the opposite way around).

但是现在，由于鞋子的设计缘故，我们更容易脚跟先着地，再是脚掌，这完全和以前相反。

youdao

And finally here is the bipedal version of BigDog that walks heel-to-toe just like humans do.

最后我们这里还有一个两足版的“大狗”，它可以像人类一样利用脚跟和脚趾来行走。

youdao

Balance: Standing on one foot, walking heel-to-toe and standing up without using your arms can help improve balance.

CNN: The new face of fitness is getting older