1. After weight hemiplegia and paraplegia, when patients' muscle strength is weakened or their lower limbs are unable to support their weight or they cannot carry weight due to joint pain, walking AIDS can play a substitute role;
2, maintain balance, such as the elderly, non-central disorders of lower limb weakness, lower limb spasm and poor extension, the center of gravity movement can not balance and other obstacles;
3, enhance muscle strength often use walking stick, axillary rod, because to support the body, therefore, the upper limb extensor muscle has the role of enhancing muscle strength.
