Navigation Links
Viagra improves high altitude exercise performance up to 45% for some

to sildenafil while the remaining six did not, Friedlander said. The responders showed the greatest drops in stroke volume, cardiac output, and cycling performance between the sea level and high altitude trials without the drug.

"Without sildenafil, their performance went down more than others," Friedlander said. "With it, it brought them back up to the levels of the non-responders." The results suggest that the responders experienced a greater degree of constriction of the vessels in the lungs at altitude and therefore benefited more from the vessel relaxation effects of sildenafil.

"One of the messages of the paper is that not everybody benefits," Friedlander said. Sildenafil could be considered as a treatment for those who suffer most at altitude but, because of side effects that can include severe headaches and the apparent inability to help some people, it should not be taken as an exercise aid by everyone, she said.

The bigger picture

This study adds to the scientific knowledge of what physiological factors limit performance at altitude, including the role that cardiac output plays, Friedlander said. For instance, physiologists don't know why some people have trouble at altitude and may develop illnesses such as acute mountain sickness or high altitude pulmonary edema while others adapt quickly. Studies like this may help identify some of the underlying differences between people and lead to better treatments.

In future studies, Friedlander wants to identify:

  • what steps individuals could take to acclimatize before they go to altitude
  • who is likely to acclimatize quickly at altitude and who may need additional help
  • how to minimize performance declines at altitude

Friedlander and her team are working on issues that could apply to those who have to rapidly acclimatize to high altitude. For instance, when soldiers deploy to Afghanistan, they must quickly undertake physically t
'"/>

Source:American Physiological Society


Page: 1 2 3 4

Related biology news :

1. Viagras hidden help for wildlife
2. Product improves peptide identification for proteomics research
3. Stem cell treatment improves mobility after spinal cord injury
4. Combination therapy improves AIDS-related lymphoma outcome
5. One fish, two fish: New MIT sensor improves fish counts
6. Man-made heart tissue improves cardiac performance
7. Quitting smoking improves lung function considerably
8. Melatonin improves mood in winter depression
9. Brain protein improves stroke symptoms in rats, even when injected after 3 days
10. Heart smart: new drug improves blood flow
11. Drug treatment improves learning in mice with Down syndrome symptoms, Stanford/Packard study shows
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Viagra improves high altitude exercise performance for some

(Date:11/18/2014)... Nov. 18, 2014   EyeLock Inc. , ... and MorphoTrust USA (Safran), a leading ... announced a strategic partnership to offer comprehensive biometric ... administration (MVA), airport screening and financial services markets. ... MorphoTrust serves consumers through a nationwide network of ...
(Date:11/12/2014)... , Nov. 12, 2014 Crossmatch™, a ... that its U.are.U ® fingerprint readers have been ... in Central Mexico . The bakery ... to eliminate payroll issues caused by employees clocking in ... the U.are.U fingerprint readers, Montparnasse relied on paper timecards ...
(Date:11/10/2014)... U.S. store shelves in early 2010, and people have ... packets can be tossed into a washing machine without ... The convenience, though, has come with risks for young ... Children,s Hospital found that from 2012 through 2013, U.S. ... than 6 years of age swallowing, inhaling, or otherwise ...
Breaking Biology News(10 mins):EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2Study finds laundry detergent pods, serious poisoning risk for children 2
... Jan. 7, 2013 Halting climate change will require "a ... eradicate harmful carbon dioxide emissions, not just stabilize them, according ... In a Jan. 9 paper in Environmental Research Letters ... take a fresh look at the popular "wedge" approach to ...
... from Italy and their offspring form one of the largest ... their state of health and risk of mortality. In a ... University of Zurich,s Institute of Social and Preventative Medicine calculated ... Immigrants from Italy live longer than ...
... New research led by the Karolinska Institutet, Sweden and the ... human gene and the composition of human gastrointestinal bacteria. In ... Gut , the team outline new evidence suggesting that the ... of the billions of microbes in the human gastrointestinal tract ...
Cached Biology News:Major cuts to surging CO2 emissions are needed now, not down the road, study finds 2Italian immigrants live longer 2International study suggests human genes influence gut microbial composition 2
(Date:12/17/2014)... 2014 This report is a ... industry. For an overview analysis, the report introduces ... chain structure, industry overview, policy analysis, and news ... has witnessed rapid development with key manufacturers ... This report mentions quartz tubing upstream raw materials ...
(Date:12/17/2014)... SPRING, Md. , Dec. 17, 2014  United ... two senior executive promotions as well as changes to ... Senior Executive Promotions United Therapeutics ... to President and Co-Chief Executive Officer and David ... Operating Officer.  In connection with these promotions, Dr. Rothblatt,s ...
(Date:12/15/2014)... YORK & PETACH TIKVAH, Israel ... Inc. (NASDAQ: BCLI ), a leading developer ... today that wholly-owned subsidiary Brainstorm Cell Therapeutics Ltd. was ... Israel,s Office of the Chief Scientist ... been in receipt of grant support from the Office ...
(Date:12/13/2014)... 13, 2014 CanDiag, Inc., a University ... has changed its name to OncoTab, Inc. , ... where we are today,” said CEO and Chief Science ... applications beyond breast cancer diagnostics to include imaging and ... that evolution.” , Founded in 2011 by Dr. Mukherjee, ...
Breaking Biology Technology:2020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 2United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 3United Therapeutics Corporation Announces Executive Promotions and CEO Compensation Change 4BrainStorm Receives $1,100,000 for its 8th Annual Non-Dilutive Grant from Israel's Chief Scientist Office 2BrainStorm Receives $1,100,000 for its 8th Annual Non-Dilutive Grant from Israel's Chief Scientist Office 3CanDiag Inc. Expands Product Scope Under a New Name: OncoTab, Inc. 2
... 20, 2011 Scientists Drs. Samuel and Elenore Bogoch of ... increase in Replikin Counts of the EHEC lethal strains of ... strains of E. Coli have been studied in laboratories in ... available in the public databases. Replikins are subsequences of the ...
...   Hospitals, health systems to ... Sigma and other,performance management solutions ... information products,and services, has struck an exclusive partnership with ... online learning solutions for process,improvement. Elsevier will ...
... has the potential to make consumer electronic devices faster ... scale of electronics, also make graphene difficult to fabricate ... In September 2010, a UCLA research team reported ... were able to fabricate graphene transistors with unparalleled speed. ...
Cached Biology Technology:Rising Replikin Counts in E. Coli in Germany Since 2005 Preceded Current E. Coli Outbreak 2Rising Replikin Counts in E. Coli in Germany Since 2005 Preceded Current E. Coli Outbreak 3Elsevier Strikes Exclusive eLearning Partnership with The Quality Group 2Elsevier Strikes Exclusive eLearning Partnership with The Quality Group 3Elsevier Strikes Exclusive eLearning Partnership with The Quality Group 4UCLA team reports scalable fabrication of self-aligned graphene transistors, circuits 2
ANTI PIG LDH H4...
... boxes are ideal for use in refrigerators, freezers, or ... Four vibrant colors allow for color coding to project, ... nitrogen drainage or promote cool air circulation. Supplied with ... 81 tubes. Box dimensions: 13 x 13 ...
Sterile glass 5 mm beads that make spreading bacterial and yeast cultures easy. Can be washed, autoclaved and reused....
Similar to proteasome (prosome, macropain) 26S subunit, ATPase, 1 Antigen: Recombinant Protein...
Biology Products: