Descriptions of a few new species and one new genus of [Ordovician and] Silurian fossils from Ohio

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1872
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Abstract

Background

Endurance athletes have been using altitude training for decades to improve near sea-level performance. The predominant mechanism is thought to be accelerated erythropoiesis increasing haemoglobin mass (Hbmass) resulting in a greater maximal oxygen uptake (O2max). Not all studies have shown a proportionate increase in O2max as a result of increased Hbmass. The aim of this study was to determine the relationship between the two parameters in a large group of endurance athletes after altitude training.

Methods

145 elite endurance athletes (94 male and 51 female) who participated in various altitude studies as altitude or control participants were used for the analysis. Participants performed Hbmass and O2max testing before and after intervention.

Results

For the pooled data, the correlation between per cent change in Hbmass and per cent change in O2max was significant (p<0.0001, r2=0.15), with a slope (95% CI) of 0.48 (0.30 to 0.67) intercept free to vary and 0.62 (0.46 to 0.77) when constrained through the origin. When separated, the correlations were significant for the altitude and control groups, with the correlation being stronger for the altitude group (slope of 0.57 to 0.72).

Conclusions

With high statistical power, we conclude that altitude training of endurance athletes will result in an increase in O2max of more than half the magnitude of the increase in Hbmass, which supports the use of altitude training by athletes. But race performance is not perfectly related to relative O2max, and other non-haematological factors altered from altitude training, such as running economy and lactate threshold, may also be beneficial to performance.
Reference Key
openalex_W2328116076 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors F. B. Meek
Journal american journal of science
Year 1872
DOI
10.2475/ajs.s3-4.22.274
URL
https://ajsonline.org/article/65287.pdf
Keywords Keywords not found

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