Mor G, Gafter L. Training intensity, sleep, and athletes’ well-being during COVID-19 lockdowns. sci. j. sport perform. [Internet]. 2025 May 27 [cited 2025 Jul. 26];4(3):368-81. Available from: https://sjsp.aearedo.es/index.php/sjsp/article/view/training-intensity-sleep-well-covid-19