It seems that the current FIVB rules do not allow elbow pads to be worn in official competitions. Recently entered the competition because of an overwhelming rescue. Every time I break my arm, I decide to start with one. I think the elbow protection of joints is greater than wrestling protection. You can have a look. When rolling serve, due to the fast swing speed, if the posture is irregular or the warm-up is insufficient, it is easy to strain the shoulder muscles. But I always think that hand guards are more suitable for sports like basketball. Volleyball has faster shoulders and wider range of motion. There will be some restrictions after installing hand guards. I have seen those disgusting children in our team wear them, and I think this effect is very general.
As for the waist, I don't think beginners can use it at first. A very important part of the compressive strength is the strength of the waist. Whether because of physical fitness or skill, novices rarely use the strength of waist and abdomen when rolling. If you really want to buy it, I suggest not buying ordinary belts, but buying waist fixing devices, such as steel bars and hard boards, which are more protective. It is recommended that a golfer with a waist type should have a good waist and can effectively support your waist. Until now, playing volleyball, I think the most important thing is to have a good knee pad. Except for some unforeseen injuries, knee problems are the most common. Because of knee problems, many players have to reduce the number of volleyball matches and cannot enjoy volleyball.