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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-14350

Schuler, B; Thomsen, J J; Gassmann, M; Lundby, C (2007). Timing the arrival at 2340 m altitude for aerobic performance. Scandinavian Journal of Medicine & Science in Sports, 17(5):588-594.

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Abstract

This study tested the hypothesis that maximal oxygen uptake (VO(2max)) and performance increase upon altitude acclimatization at moderate altitude. Eight elite cyclists were studied at sea level, and after 1 (Day 1), 7 (Day 7), 14 (Day 14) and 21 (Day 21) days of exposure to 2340 m. Capillary blood samples were taken on these days before performing two consecutive maximal exercise trials. Acclimatization increased hemoglobin concentration and arterial oxygen content. On Day 1, VO(2max) and time to exhaustion (at 80% of sea-level maximal power output) decreased by 12.8% (P<0.05) and 25.8% (P<0.05), respectively, compared with the corresponding sea-level values. Subsequently, these parameters increased by 3.2% (P<0.05) and 6.0% (P<0.05) from Days 1 to 7, by 4.8% (P<0.05) and 5.7% (P<0.05) from Days 7 to 14, followed by 0.7% (P>0.05) and 1.4% (P>0.05) from Days 14 to 21, respectively. These data suggest that endurance athletes competing at altitudes around 2340 m should expose themselves to this altitude at least 14 days before competition.

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Veterinary Physiology
04 Faculty of Medicine > Center for Integrative Human Physiology
DDC:570 Life sciences; biology
610 Medicine & health
Language:English
Date:October 2007
Deposited On:20 Mar 2009 11:19
Last Modified:28 Nov 2013 01:22
Publisher:Wiley-Blackwell
ISSN:0905-7188
Publisher DOI:10.1111/j.1600-0838.2006.00611.x
Official URL:http://www3.interscience.wiley.com/journal/118521465/abstract
PubMed ID:17316377
Citations:Web of Science®. Times Cited: 30
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