Rodrigues Sampaio AC, Pimenta N, Machado M, Teques P. Development and validation of the Fitness Coaching Behavior Scale: Factor structure, validity and reliability (Desarrollo y validación de la Escala de Comportamiento del Instructor de Fitness: Estructura factorial, validez y fiabilidad) (Desenvolvimento e. Retos [Internet]. 2020 Jan. 1 [cited 2026 Jun. 10];37:687-93. Available from: https://revistaretos.org/index.php/retos/article/view/74344