Study name: Effects of oxygen breathing on inspiratory muscle fatigue during resistive load in cycling
Gender/sex and ability: Eight healthy, trained males
Type of exercise used: Subjects exercised in the sitting position on an electronically braked cycle ergometer
Intensity of exercise: An incremental cycling test was performed until exhaustion. The workload on the ergometer was increased by 30 watts every 3 minutes until the subject was no longer able to maintain the pedaling frequency at a constant level (60 revolutions per minute).
Percent (%) of oxygen used: 21% or 100%
Research/study findings: Maximum work performed by the subjects was significantly higher during hypoxia, when breathing enriched oxygen of 100% purity, when compared to breathing ambient air (210±11 watts and 181±9 watts, respectively; P<0.05). The study demonstrates inspiratory muscle fatigue occurs in healthy subjects during high-intensity exercise with inspiratory resistive loading. In this study, breathing pure oxygen increases the maximal cycling ability of the sample, on average, by 30 watts.
Oxygen Plus application/implication: Hyperoxia improves athletic performance and slows the development of muscle fatigue that occurs during incremental cycling at a mild resistive load. Breathing pure oxygen from Oxygen Plus during vigorous exercise tops off depleted oxygen levels, helping to enhance performance and speed up recovery time.
Publication/source/year: Segizbaeva, M. O., & Aleksandrova, N. P. (2009). Effects of oxygen breathing on inspiratory muscle fatigue during resistive load in cycling men. J Physiol Pharmacol, 60(Suppl 5), 111-116.
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