Hyperbaric oxygen has previously been tested as a possible means for pre-conditioning to enhance exercise performance. This study is designed to examine the effects of exercising in a hyperbaric chamber for improving fitness when combined with high-intensity training.
The purpose of this research study is to determine the incremental benefit of high intensity interval training (HIT) in a hyperbaric-hyperoxic environment with HIT alone in healthy subjects and to compare the effect of HIT at an intermediate altitude (SLC, UT; altitude 1420 m) with that performed at sea-level (Durham, NC) in healthy subjects. While VO2 max is determined by the functional interdependence of the respiratory, cardiovascular and muscular systems, ultimately VO2 max is determined by mitochondrial oxidative capacity. Exercise training increases mitochondrial capacity. There is evidence that high intensity interval training (HIT) programs are effective at increasing exercise capacity. Furthermore, there is evidence that training while in a hyperbaric-hyperoxic environment may potentiate the HIT training effect through its effects on mitochondrial oxidative capacity, but this has not been scientifically tested. Our hypothesis is that high intensity interval training (HIT) in a hyperoxichyperbaric environment performed six-times over a two-week period will increase exercise performance compared with HIT performed in ambient conditions in healthy subjects. The primary outcome studied will be the effect of high-volume interval training in a hyperbaric-hyperoxic on VO2max.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
50
Intermountain Medical Center
Murray, Utah, United States
Change in maximum VO2 at 2 weeks compared to baseline
Comparison of post-training VO2 results with baseline in the two HIT groups (performed at ambient conditions in Salt Lake City, UT and hyperbarichyperoxic conditions); the results of HIT at Salt Lake City, UT altitude will be compared with those performed at sea-level altitude in Durham, NC.
Time frame: 2 weeks
Change in VO2 measured at anaerobic threshold (in mL O2/kg/min) at 2 weeks compared to baseline
Difference post-training minus pre-training
Time frame: 2 weeks
ΔVO2/ΔWR (in mL O2/kg/min/Watt; a measure of exercise efficiency)
Difference post-training minus pre-training
Time frame: 2 weeks
Change in peak work rate (in Watts) at 2 weeks compared to baseline
Difference post-training minus pre-training
Time frame: 2 weeks
Change in heart rate response to exercise at 2 weeks compared with baseline
Difference post-training minus pre-training
Time frame: 2 weeks
Change in level of perceived exertion at 2 weeks compared with baseline
Difference post-training minus pre-training
Time frame: 2 weeks
Change in Borg dyspnea score at 2 weeks compared with baseline
Difference post-training minus pre-training
Time frame: 2 weeks
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.