ArticleEuropean journal of applied physiology2006
Alternative strategies for exercise critical power estimation in patients with COPD.
Article in European journal of applied physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Exercise testing in patients with tricuspid regurgitation undergoing transcatheter tricuspid valve intervention.Clinical research in cardiology : official journal of the German Cardiac Society · 2025Article
- Interaction of Factors Determining Critical Power.Sports medicine (Auckland, N.Z.) · 2023Review
- A critical review of critical power.European journal of applied physiology · 2022Review
- The effect of dietary nitrate supplementation on the speed-duration relationship in mice with sickle cell disease.Journal of applied physiology (Bethesda, Md. : 1985) · 2020Article
- Critical Power: An Important Fatigue Threshold in Exercise Physiology.Medicine and science in sports and exercise · 2016Review
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Exercise critical power (CP) has been shown to represent the highest sustainable work rate (WR) in patients with chronic obstructive pulmonary disease (COPD). Parameter estimation, however, depends on 4 high-intensity tests performed, on different days, to the limit of tolerance (T(lim)). In order to establish a milder protocol that would be more suitable for disabled patients, we contrasted CP derived from 4, 3 and 2 tests (CP4, CP3 and CP2) in 8 males with moderate COPD. In addition, CP was calculated from 2 single-day tests performed on an inverse sequence (CP(2AB) and CP(2BA)): CP values within 5 W from CP4 were assumed as "clinically-acceptable" estimates. We found that [CP4-CP3] and [CP4-CP2] differences were within 5 W in 8 and 6 patients, respectively (95% confidence interval of the differences = -1.3 to 3.5 W and -11.5 to 6.5 W). There was a systematic decline on T(lim) when an exercise bout was performed after a previous test on the same day (P<0.05). Consequently, substantial differences were found between CP4 and any of the CP estimates obtained from single-day tests. In conclusion, clinically-acceptable estimates of CP can be obtained by using 3 or, in most circumstances, 2 constant WR tests in patients with moderate COPD--provided that they are not performed on the same day.
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