Navigation Links
For altitude training, a narrow window for success
Date:12/12/2013

Methodology

The researchers worked with 48 collegiate track and cross country runners. For four weeks, these athletes trained in Dallas, where the researchers performed a variety of tests to assess the athletes' baselines on several different measures. For example, they determined the athletes' VO2max, a measure of aerobic fitness based on the rate at which the body uses oxygen during exercise. They timed the athletes as they ran 3000 meters at their fastest pace. They performed a variety of blood tests, including measuring their volume of red blood cells and the concentration of a hormone called EPO that stimulates red blood cell production. Previous research has shown that EPO concentrations rise when people live at higher altitudes, an adaptation to help their bodies cope with less oxygen in the air by making more red blood cells.

Then, for a second four weeks, these athletes were separated into four groups. Each group lived in altitude training camps in the mountains near Salt Lake City at sites of various altitudes: Heber City (1780 meters), Park City (2085 meters), Deer Valley (2454 meters), and Guardsman's Pass (2800 meters). Once a day, all the athletes gathered at a common site to train regardless of which altitude they were assigned for living. Their EPO concentrations were checked periodically during their mountain stay.

At the end of this period, the athletes regrouped in Dallas, where they had more exercise and blood testing and ran another timed 3000 meters.

Results

The researchers found that when the athletes returned to sea level, only those who lived at the two middle altitudes (2085m and 2454m) performed significantly better than those at either end of the spectrum. EPO concentrations and red blood cell volumes had risen in each of the four groups, suggesting that contrary to long-held wisdom, these adaptations aren't the only reason altitude training enhances performance.

Impor
'/>"/>

Contact: Donna Krupa
dkrupa@the-aps.org
American Physiological Society
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Study shows first link between altitude and concussion
2. The genome sequence of Tibetan antelope sheds new light on high-altitude adaptation
3. 2 days of staging as effective as 4 for high-altitude climbs
4. Yak genome provides new insights into high altitude adaptation
5. Messages that speak to conservatives morals narrow partisan gap on environment
6. Approach to diabetes self-management too narrow, study suggests
7. New insights into cancer evolution help define screening window of opportunity
8. Research points to potential window for treating CMV and preventing mother-to-child transmission
9. Bio-inspired design may lead to more energy efficient windows
10. Fingerprint Cards (FPC) Demonstrates Fingerprint Biometric Touch Sensor for Microsoft Windows 8.1
11. Window on future ocean change
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/25/2014)... Prediabetes and Diabetes increasingly consume the healthcare ... immediate attention. , To address the ... impacting low-and middle-income countries, global leaders in ... research in diabetes prevention and development of ... important text. , This book on ...
(Date:7/25/2014)... tractography (DTT), which is derived from diffusion tensor ... motor tracts, such as the corticospinal tract, the ... The corticospinal tract is known to be a ... human brain. Several studies have reported on injury ... addition, some studies have demonstrated recovery of a ...
(Date:7/25/2014)... the first time, Spanish researchers have detected an unknown ... cells are introduced into a droplet of salt ... sodium chloride crystallisation to create biomineralogical biosaline 3D morphologically ... the material, bacteria are revived. The discovery was made ... the cover of the Astrobiology journal and ...
Breaking Biology News(10 mins):What constitutes an effective response to the global 'diabesity' tsunami? 2Bacteria manipulate salt to build shelters to hibernate 2
... University of Michigan researchers and their colleagues recently hastened ... trees in a large-scale, long-term experiment to glimpse the ... bark was stripped from each tree to kill it ... the federally funded experiment Forest Accelerated Succession Experiment (FASET) ...
... of Pacific Islands Forestry have submitted a proposal to ... strawberry guava, a South American tree that has invaded ... in 1825 as a garden plant. The scientists are ... and Natural Resources, and Hawai Department of Agriculture, agencies ...
... May 25, 2008, approaching 5 p.m. PDT, NASA scientists will ... because at that time the Phoenix Mars Mission space vehicle ... a soft landing onto the northern Mars terrain called Green ... the Red Planet. The place got its name after analysis ...
Cached Biology News:U-M scientists remove thousands of aspens to glimpse forest's future 2U-M scientists remove thousands of aspens to glimpse forest's future 3Insect release proposed to control exotic strawberry guava 2Phoenix mission to Mars will search for climate clues 2Phoenix mission to Mars will search for climate clues 3
(Date:7/25/2014)... live in each person,s digestive tract. Scientists believe that ... off harmful infections, but their role in human health ... on the role of these bacteria, a team of ... tracked fluctuations in the bacterial populations of two research ... the July 25 issue of the journal Genome ...
(Date:7/25/2014)... 25, 2014 According to a new ... Market - Global Industry Analysis, Size, Share, Growth, Trends ... market is estimated at USD 161,056.5 million in 2014 ... 10.1% from 2014 to 2020, to reach an estimated ... biological drugs market is witnessing a significant growth due ...
(Date:7/25/2014)... California (PRWEB) July 25, 2014 Lawrence ... named to Thomson Reuters list of " The World's ... are part of the 3,000 researchers who were identified ... to recognize those who published the highest-impact work (2002-2012 ... research papers on combustion modeling . , "This ...
(Date:7/25/2014)... (PRWEB) July 25, 2014 At the ... has granted a 60-day extension for the public comment ... Special Rule for Model Aircraft established by Congress as ... 2012. The 60-day extension establishes the new deadline for ... States Department of Transportation/FAA notice published in the Federal ...
Breaking Biology Technology:Monitoring the rise and fall of the microbiome 2Monitoring the rise and fall of the microbiome 3Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 2Biological Drugs Market: Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2014 - 2020 3Scientists Burst onto Influential List for Combustion Research 2Scientists Burst onto Influential List for Combustion Research 3Scientists Burst onto Influential List for Combustion Research 4FAA Grants Comment Extension at the Request of AMA 2
... , Multiporator / Electroporator 2510 , , , , , , ... , Protocol No. 4308 915.534 01/2002 , , ... , , Microorganism , ... Cell type , Bacteria, gram positive, , ...
... , , , , , , Multiporator / Electroporator 2510 , , , ... , Transformation Protocol , Protocol No. 4308 915.532 ... , , , , , , ... , Cell type , ...
... , , , , , , Multiporator / Electroporator 2510 , , , ... , Transformation Protocol , Protocol No. 4308 915.528 ... , , , , , , ... , Cell type , ...
Cached Biology Technology:Staphylococcus epidermidis 2Salmonella typhimurium 2Pseudomonas aeruginosa 2