article 2023 Eight Weeks of High-Intensity Interval Training Using Elevation Mask May Improve Cardiorespiratory Fitness, Pulmonary Functions, and Hematological Variables in University Athletes Nasser Abouzeid, Mahmoud ELnaggar, Haytham FathAllah, Mostafa Amira JournalInternational Journal of Environmental Research and Public HealthDOI10.3390/ijerph20043533Study typeexperimentalPopulationuniversity athletes View on DOI ↗