What is wrapped around the waist when throwing shot put is called waist protector, which can protect the waist muscles of athletes, that is, to avoid pulling the waist muscles when throwing.

When throwing the shot put, the muscles of feet, legs, waist, arms and wrists need to exert their strength and coordinate their movements in order to throw further.

Among them, you need to do a rotation after pedaling. At this time, you need to give full play to your waist muscles to drive your leg strength to your upper limbs. The waist is a key part and bears great stress, so it is easy to get hurt in this process, so it is wrapped with a waist protector to protect the human body to the maximum extent.

This kind of waist-wrapping is common in professional athletes' competitions. Ordinary people throw shot put, basically not enough action, basically no waist protection.