Volitional hyperventilation during ramp exercise to exhaustion
Applied Physiology, Nutrition and Metabolism, ISSN: 1715-5312, Vol: 31, Issue: 3, Page: 211-217
2006
- 7Citations
- 26Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Metrics Details
- Citations7
- Citation Indexes7
- CrossRef6
- Captures26
- Readers26
- 26
Article Description
The purpose of this study was to determine whether volitional hyperventilation at 20 L·min above normal exercise values affected exercise duration while performing ramp exercise to exhaustion. Nine healthy subjects performed a ramp exercise test to exhaustion. On a subsequent test they hyperventilated, with the aid of visual and audio feedback, at 20 L·min greater than their initial test. Ramp exercise time to exhaustion was substantially reduced from 771.6 ± 85.2 s to 726.6 ± 86.6 s (p < 0.002) with the additional hyperventilation. Subjects underwent 2 more ramp exercise tests and performed a 5 s maximum voluntary ventilation or a forced vital capacity test at work rates corresponding to rest, below lactate threshold (LT), above LT, immediately after exercise, and 3 min recovery. Generally, the flow rates were not affected by exercise below LT and were enhanced during above-LT exercise, exhaustion, and recovery. This indicated a change in pulmonary function that is dependent on exercise intensity. In spite of this increased ability to generate high flow rates, exercise performance was diminished when respiratory muscle work was increased volitionally by 20 L·min, indicating a strong coupling between respiratory muscle work and fatigue during ramp exercise in normal subjects. © 2006 NRC Canada.
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