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Relationship between changes in haemoglobin mass and maximal oxygen uptake after hypoxic exposure.
| Content Provider | Europe PMC |
|---|---|
| Author | Saunders, Philo U Garvican-Lewis, Laura A Schmidt, Walter F Gore, Christopher J |
| Copyright Year | 2013 |
| Abstract | BackgroundEndurance 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 (). Not all studies have shown a proportionate increase in 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.Methods145 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 testing before and after intervention.ResultsFor the pooled data, the correlation between per cent change in Hbmass and per cent change in 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).ConclusionsWith high statistical power, we conclude that altitude training of endurance athletes will result in an increase in 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 , and other non-haematological factors altered from altitude training, such as running economy and lactate threshold, may also be beneficial to performance. |
| Related Links | https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC3903146&blobtype=pdf |
| ISSN | 03063674 |
| Journal | British Journal of Sports Medicine [Br J Sports Med] |
| Volume Number | 47 Suppl 1 |
| DOI | 10.1136/bjsports-2013-092841 |
| PubMed Central reference number | PMC3903146 |
| Issue Number | Suppl 1 |
| PubMed reference number | 24282203 |
| e-ISSN | 14730480 |
| Language | English |
| Publisher | BMJ Publishing Group |
| Publisher Date | 2013-12-01 |
| Publisher Place | BMA House, Tavistock Square, London, WC1H 9JR |
| Access Restriction | Open |
| Rights License | This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 3.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/3.0/ Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions |
| Subject Keyword | Aerobic fitness/Vo2 Max Altitude Exercise Endurance Elite performance |
| Content Type | Text |
| Resource Type | Article |
| Subject | Orthopedics and Sports Medicine Physical Therapy, Sports Therapy and Rehabilitation Sports Science |
