• Web
  • Humsa
  • Videos
  • Forum
  • Q2A
rabia shakeel : meri dua hai K is bar imran khan app is mulk k hukmaran hun To: suman(sialkot) 4 years ago
maqsood : hi how r u. To: hamza(lahore) 4 years ago
alisyed : hi frinds 4 years ago
nasir : hi To: wajahat(karachi) 4 years ago
khadam hussain : aslamoalikum pakistan zinsabad To: facebook friends(all pakistan) 4 years ago
Asif Ali : Asalaam O Aliakum . To: Khurshed Ahmed(Kashmore) 4 years ago
khurshedahmed : are you fine To: afaque(kashmore) 4 years ago
mannan : i love all To: nain(arifwala) 4 years ago
Ubaid Raza : kya haal hai janab. To: Raza(Wah) 4 years ago
qaisa manzoor : jnab AoA to all 4 years ago
Atif : Pakistan Zinda bad To: Shehnaz(BAHAWALPUR) 4 years ago
khalid : kia website hai jahan per sab kuch To: sidra(wazraabad) 4 years ago
ALISHBA TAJ : ASSALAM O ELIKUM To: RUKIYA KHALA(JHUDO) 4 years ago
Waqas Hashmi : Hi Its Me Waqas Hashmi F4m Matli This Website Is Owsome And Kois Shak Nahi Humsa Jaise Koi Nahi To: Mansoor Baloch(Matli) 4 years ago
Gul faraz : this is very good web site where all those channels are avaiable which are not on other sites.Realy good. I want to do i..... 4 years ago
shahid bashir : Mein aap sab kay liye dua'go hon. 4 years ago
mansoor ahmad : very good streming 4 years ago
Dr.Hassan : WISH YOU HAPPY HEALTHY LIFE To: atif(karachi) 4 years ago
ishtiaque ahmed : best channel humsa live tv To: umair ahmed(k.g.muhammad) 4 years ago
Rizwan : Best Streaming Of Live Channels. Good Work Site Admin 4 years ago
No evidence of EPO benefit: scientists
By: Editor | 10-12-2012
Total Views:381

Cyclists who dope themselves with EPO may not gain any performance advantage even though they are putting their health at risk, scientists said on Thursday.

 

 

In a review of the evidence, a team of European researchers scoffed at the entrenched notion that EPO gives cyclists an edge.

And they pointed out that the drug has many perils for those who use it illicitly, including blood clots that can cause strokes and heart attacks.

Athletes and their medical staff may believe EPO enhances performance, but there is no evidence that anyone performed good experiments to check if EPO would actually improve performance in elite cyclists," said Adam Cohen, a professor at the Centre for Human Drug Research in the Netherlands.

EPO -- erythropoietin -- is a natural hormone, produced in the kidneys, which helps regenerate the red blood cells that transport oxygen around the body.

A man-made version of the hormone is licensed for treating renal patients to help them combat anaemia.

As early as 1990, the drug appeared on the International Olympic Committee's banned list, given the suspicions that by increasing red-blood cell mass, it also boosts exercise capacity.

EPO then engulfed professional cycling, breeding a scandal that erupted this year when Lance Armstrong was stripped of his record seven Tour de France titles.

But, said the new study, no solid evidence exists to back the belief that EPO is as effective as dodgy trainers and team doctors believe.

And, it added, there are plenty of reasons to say the faith is as dangerous as it is misplaced.

Cohen's team trawled through published studies that tested EPO's effect on healthy cyclists but found none which had participants of competition level, whose genetic profile and training programmes differ from those of sub-elite groups.

The big belief behind EPO is that it improves maximal oxygen uptake -- known in scientific parlance as VO2 max -- and thus boosts power output.

But Cohen found no proof for this, at least as far as pro cycling is concerned.

In tests, cycling volunteers were usually assessed for VO2 max for just 20 minutes or so, a far cry from a five-hour grind of a cycling race.

In any case, said the study, VO2 max is only a minor factor in the performance of endurance cyclists.

Only small segments of professional cycling races are cycled at such severe intensities that VO2 max is decisive. There are many other factors, none of them influenced by EPO.

They include the blood lactate threshold, which determines the point at which muscles tire; work economy, which is the efficiency of the metabolic system to convert energy into movement; increased cardiac volume; and the quantity of muscle mass available for sustained power production.

There is no scientific basis to conclude EPO has performance-enhancing properties in elite cyclists," is the blunt conclusion of the study, which appears in the British Journal of Clinical Pharmacoloy.

Additionally, the possibly harmful side-effects have not been adequately researched for this population, but appear to be worrying at least.( dawnews)


About the Author: Editor
Visit 171 Other Articles by Editor >>
Comments
Add Comments
Name
Email *
Comment
Security Code *


 
Related Articles
By: Editor | 04-01-2013
And Now, Fareedon Hazara Town can be reached after crossing the whole city. Its Isolation from the provincial capital, reminds one of a distant poor relative, who exists but is largely neglected. The Hazaras in Quetta are putting up at two places. A portion lives here, while the other is settled near the garrison on Alamdar Road. By all standards, Hazara Town is a tale o..... Read more
By: Editor | 14-03-2013
My country is beautiful, but I can’t see it I am a child, who has just lost all of his toys, friends, parents and everything that was held dear by me. I thought I was left with a name that was the final proof of my existence, Pakistan. My beautiful country, but I can’t see that anymore. This was the final precious thing to me which is now lost. I am stranded and ignored in my own home. Still, I ..... Read more
By: Editor | 30-12-2012
 In Swat I was there this August. The city reflects about what it would have been like when the Taliban had taken over. People of Swat were threatened, Islam was different, life was not normal, and nothing could possibly be related to the essence of what the city was known for. The clashes of natural beauty; the mountains, rivers and the innocence of the land th..... Read more