Paredes-Gómez R, Potosí-Moya V. Análisis del protocolo de curl nórdico de isquiotibiales en la flexibilidad de los deportistas (Analysis of the Nordic curl protocol in the flexibility of athletes). Retos [Internet]. 2023 Mar. 31 [cited 2026 Jun. 10];48:720-6. Available from: https://revistaretos.org/index.php/retos/article/view/96671