Nivel de flexibilidad en deportistas de los clubes de la Universidad Técnica del Norte. Enfoque fisioterapéutico: Level of flexibility in sports men of the clubs of the North Technical University. Physiotherapeutic approach. lauinvestiga [Internet]. 2019 Dec. 31 [cited 2026 Jul. 26];6(2):76-87. Available from: https://revistasojs.utn.edu.ec/index.php/lauinvestiga/article/view/433