Number one: it's too hard to practice your legs. I may not get out of bed the next day after practice, and I may not be able to walk steadily down the stairs.

The second point: the upper body can still be exposed, but how can the lower body be exposed?

Maybe that's why we can't aim too high. You can start from the basics. There is a saying in the fitness world that "if you don't practice your legs, you will regret it sooner or later". Exercising legs can reduce injuries in sports, strengthen leg muscles and make us perform better in sports. The explosive power of many sports is basically dominated by the lower limbs. Leg muscles are underdeveloped, and legs are soft when walking, especially for the elderly.

I suggest you consult the coach directly. Maybe the coach has a special plan when to start practicing his legs. Web page link