Estrada-Marcén N, Soler-Gracia Álvaro, Casterad-Seral J, Cid-Yagüe L. Situación profesional y entorno laboral del instructor de Ciclo Indoor (Professional situation and labor environment of the Indoor Cycling instructor). Retos [Internet]. 2021 Jul. 1 [cited 2026 Jun. 13];41:708-17. Available from: https://revistaretos.org/index.php/retos/article/view/83047