Humberto Silveira is a Judo and Jiu Jitsu black belt from one of the strongest grappling schools in Bahia (Brazil), the Academia Schiozawa, an academy with a very distinct lineage in Brazilian Jiu Jitsu. Humberto is famous for his development of the "Contato Constante" (constant contact), a training method that helps the grappling aspect of fighting through a series of movements focused on core strength and hip mobility.