Trends in leisure-time physical activity participation by sex and age in Brazil: insights from Vigitel 2013-2023. - Gonçalves TR; Mediano MFF; Fonseca CC; Araujo GLV; de Aguiar Oliveira LA; da Silva PHN; de Azevedo Kimura GK; Florindo AA; Hallal PC; Paravidino VB (BMC public health, 2026)