Barefoot walking ensures proper alignment of the kneejoint, hip joint and lower back.
光脚走路能够保证我们的膝关节、髋关节和下背部得到有效的调节。
2
Do not walk too quickly, still less than running when go down the hill, or the kneejoint or the muscle will get injured because the muscle feel too much pulling force.
下山时不要走得太快，更不能奔跑，否则会使肌肉感受过重的张力，而使膝关节受伤或肌肉拉伤。
3
The kneejoint is relatively unstable because there is no interlocking of bones in the joint.