Rodriguez-Fernandez, Maria Carmen, and Jose Fernando Arroyo-Valencia. “Determining the Optimal Competition Age and the Effective Performance Window in Elite 100-Meter Sprinters: A Mixed Polynomial Model”. Journal of Human Sport and Exercise, vol. 21, no. 4, Aug. 2026, pp. 1459-75, https://doi.org/10.55860/91e1dh11.