article 2018 Comparison of Long and Short High-Intensity Interval Exercise Bouts on Running Performance, Physiological and Perceptual Responses Sverre Andre Valstad, Erna von Heimburg, Boye Welde, Roland van den Tillaar JournalSports Medicine International OpenDOI10.1055/s-0043-124429Populationcollege students View on DOI ↗