You don't need to wear a wristband. For beginners who have just started practicing, they must master the weight of dumbbells. What we are talking about here is a lever dumbbell, which can gradually deepen the weight.

For example, lying flat on the sofa, standing above your head, a person, gently dragging the lever of dumbbell with both hands, plays a protective role.

When doing bench press, push fast and contract slowly, and gradually feel the strength from pectoralis major to deltoid muscle of shoulder. It can be said that pushing dumbbells is not entirely dependent on the brute force of both hands.

Another thing to pay attention to when retracting is that I want to retract too low, and the upper arm and the lower arm should have a certain angle, which can prevent the bones from being worn by long-term exercise to a certain extent.

There are two main points. One is to choose the right weight according to your age and the actual situation of the system, and insist on exercising, which will have a significant effect in one month.

In the case of good practice, the weight of lifting dumbbells (including levers and other parts, refers to the total weight) = own weight.