Of course 1 need to practice upper limbs.
I believe everyone knows something about running. As we all know, in our daily life, we often run outside, and then when we run, not only our feet move forward, but also our hands swing, which requires the strength of our upper limbs. When we take our left foot, our body will naturally lean to the right. So if we don't swing, our steps may be sprained or our shoulders and necks may be sore.
Play the role of balance, assistance and coordination.
In our real life, in fact, in my personal opinion, running is a very simple exercise, but if we use it improperly, these problems mentioned above will appear, so I think it is definitely necessary to practice upper limbs while running, which can not only play a role of balance, but also play a role of coordination and help.
So in our daily life, we should also pay more attention to this aspect. It is good for everyone to know this aspect. Moreover, now living in such an era, in fact, we should learn various sports. Only in this way can we learn to protect ourselves.