C-30 Free Communication/Poster - Ergogenic Aids II Thursday, May 28, 2015, 7:30 AM - 12:30 PM Room: Exhibit Hall F
A claimed benefit for inhaling commercial supplemental O2 during exercise is optimal aerobic performance.
PURPOSE: To examine the effect of 95% oral oxygen supplementation (Boost Oxygen) on aerobic performance and recovery.
METHODS: Seventeen participants (10 male, 7 female; 25.47±5.77 years; 171.0±8.0cm; 80.42±19.46 kg) completed a supplementation (YOx) and non-supplementation (NOx) trial in a counter-balanced research design. For each trial participants engaged in 4-minute stages of treadmill walking and running to fatigue. Each stage was separated by 2-minute rest intervals, during which five inhalations were administered for the YOx trial or no treatment for the NOx trial. Participant measures of heart rate (HR) and blood lactate (LA) were assessed before exercise (PRE), between stages (S-N), at peak (PEAK), and 10 minutes after exercise (REC). Rate of perceived exertion (RPE) and oxygen consumption (VO2) were assessed at S-N, Peak, and REC and time to exhaustion (TTE) was assessed at PEAK. Repeated-measures analysis of variance compared the two conditions of YOx and NOx and a paired samples t-test was used to assess any differences between testing conditions of TTE. Alpha was set at p<0.05 for all tests.
RESULTS: No significant differences (p>0.05) were observed between YOx and NOx (table 1) except TTE (14.4±2.7 and 13.7±2.6, respectively, p<.05). While considered statistically significant, the meaningfulness of this 42 second difference is quite small (Cohen’s d =.26).
CONCLUSION: Oral oxygen supplementation may improve TTE during treadmill exercise to fatigue. While indices of physiological and perceptual work were not different between the trials, this 5% improvement in TTE could be due to knowing a supplement was being administered.