Study name: Physiological strain associated with high intensity hypoxic intervals in highly trained young runners
Gender/sex and ability: Eight highly trained male middle and long-distance runners
Type of exercise used: Treadmill
Intensity of exercise: High intensity training (HIT)
Percent (%) of oxygen used: Performed in both normoxia and normobaric hypoxia (simulated altitude of 2,400 meters). Estimated to be 15% oxygen.
Research/study findings: The study conﬁrms that hypoxic conditions during HIT sessions are associated with reduced cardiovascular responses compared with normoxic sessions (as evidenced by shorter time spent near VO2max and HRmax), whilst having greater ratings of perceived exertion (RPE) and slightly higher blood acidosis (blood lactate).
Oxygen Plus application/implication: A decrease in running speed at the simulated altitude of 2,400 meters was connected to reduced O2 availability.
Publication/source/year: Buchheit, M., Kuitunen, S., Voss, S. C., Williams, B. K., Mendez-Villanueva, A., & Bourdon, P. C. (2012). Physiological strain associated with high-intensity hypoxic intervals in highly trained young runners. The Journal of Strength & Conditioning Research, 26(1), 94-105.
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