In the case of keeping the upper body straight, lift your legs horizontally alternately. The faster the frequency, the better the effect.
The main function of leg-lifting running is to train the explosive force of legs and improve the pedaling ability and continuous anaerobic exercise ability of lower limb muscles. Long-term practice can strengthen the leg strength, expand the stride, and improve the strength, flexibility and coordination of lower limb joints such as hip, knee and ankle.
Leg lifting exercises can improve the speed ability of sprint.