Among those interviewed in the latest edition is Raissa Souza de Lima, who took up judo at the Maré complex’s Fight for Peace centre in a bid to defend her mother from her violent alcoholic father.

"My dad was drinking and was beating my mother," she said

"I wanted to beat him up.

"To be able to hit him too.

"So I started to practice combat sports.

"Hate brought me to judo, love made me stay."

The IJF also visited the favelas of Rocinha and Cidade de Deus as well as the Instituto Reação, a Non-Governmental Organisation which aspires to aid social inclusion and human development through sport and education.

"These favelas are real life communities," said Instituto Reação founder Flavio Canto, a bronze medal-winning judoka at the Athens 2004 Olympic Games. 

"There is an incredible energy.

"But, while there is vibrant life here, people pass by without seeing it."

Rafaela Silva, who became Brazil’s first female world judo champion in 2013, was born and raised in Cidade de Deus.

"Sport has changed my life and if I reached the top of the world, I owe it to all those who helped me and believed in me," she said.

The second instalment of the "Judo for the World Series", released last month, gave an insight into the mental preparations of the United States’ Olympic champion Kayla Harrison.

In December, double Olympic gold medallist Tanimoto Ayumi and 2015 world champion Haga Ryunosuke both featured in a film telling the story of those affected by the Tōhoku tsunami and earthquake of 2011 in Japanese city Rikuzentakata.