Application of the hierarchical model of intrinsic and extrinsic motivation in the context of exercise: a systematic review - Viveiros, Bernardo; Jacinto, Miguel; Antunes, Raúl; Matos, Rui; Amaro, Nuno; Cid, Luís; Couto, Nuno; Monteiro, Diogo (Frontiers in Psychology, 2025)