Herrera-Espitia, Sara Cecilia, Natali Olaya-Mira, Isabel Cristina Soto-Cardona, y Jonathan Osorio-Vasco. «Biomechanical Analysis of the Lumbar Area Using Surface Electromyography: Flexion–relaxation Ratio in Maintenance Workers». Revista Facultad Nacional de Salud Pública 42 (agosto 8, 2024): e356473. Accedido marzo 9, 2025. https://revistas.udea.edu.co/index.php/fnsp/article/view/356473.