Haley, Cheryl, Georgia Torres, Benita Olivier, and Helena van Aswegen. “Cardiorespiratory Fitness Response to Endurance Training in Athletes Post-COVID-19 Compared to Unaffected Athletes”. South African Journal of Sports Medicine 36, no. 1 (November 25, 2024). Accessed April 10, 2025. https://journals.assaf.org.za/index.php/sajsm/article/view/18872.