Effects of two forms of school-based high-intensity interval training on body fat, blood pressure, and cardiorespiratory fitness in adolescents: randomized control trial with eight-week follow-up—the PEER-HEART study - Domaradzki, Jarosław; Popowczak, Marek; Kochan-Jacheć, Katarzyna; Szkudlarek, Paweł; Murawska-Ciałowicz, Eugenia; Koźlenia, Dawid (Frontiers in Physiology, 2025)