Vítor Rosa, Integrated Researcher at CeiED and Coordinator of ReLeCo – Educação Desportiva, Corpo e Ética publishes a new text in the context of the Proceedings of the XI Portuguese Congress of Sociology, “Identidades ao rubro: diferenças, pertenças e populismos num mundo efervescente” (2021). The theme is “Sociological analysis of martial arts and combat sports in Portugal”. The author seeks to analyse, sociologically, the sociocultural characteristics of the practitioners of two combat sports (judo and aikido).