Sonic Posted June 10, 2009 Posted June 10, 2009 For the medical clever guys. If you donate blood, how many days does it take for your body to replace the blood i.e. how long will it affect performance for? If I donate tomorrow (Thursday) will I be ok for a short race on Saturday?
wheelz Posted June 10, 2009 Posted June 10, 2009 im no doc. but if I eat well the day i give blood im fine the next day. maby thats just me. Oh and eat lots of raisins. . .its a iron supplement which help build red blood cells.-well thats what i was told so I could be wrong
The expat cyclist Posted June 10, 2009 Posted June 10, 2009 If you donate blood on Thursday, it all depends on how bad you crash on Saturday wheather you wil be fine or not.
David #7 Posted June 10, 2009 Posted June 10, 2009 Ask Dr Fuentes.Phone the Spanish yellow pages for his number. Or you could just ask the people at the Blood Bank.
TCRCARBON Posted June 10, 2009 Posted June 10, 2009 Ask Dr Fuentes.Phone the Spanish yellow pages for his number. Or you could just ask the people at the Blood Bank.
Spinnekop Posted June 10, 2009 Posted June 10, 2009 They say you are fully recovered after 2 weeks. I think mere mortals like ourselves won't feel that much of a difference... Question: WHY WOULD YOU WANT TO WILLINGLY STICK A NEEDLE IN YOUR ARM???????? Good cause my ass!!!!
Marius Posted June 10, 2009 Posted June 10, 2009 Yeah, *** that, why don't they pay us for our blood like they do in other contries!?!? I'm not giving my blood away for free!
Cranky Posted June 10, 2009 Posted June 10, 2009 You can recover the lost plasma within two days, but it takes about 6 weeks to recover the red blood cells (you'll lose about 10% of your red blood cells through a blood donation). Red blood cells carry oxygen so maximal aerobic performace will be impaired, and studies show an impairment lasting for 7 days. For sub-maximal exercise you're unlikely to notice much of a difference.
GFishy Posted June 10, 2009 Posted June 10, 2009 Your blood count won't be the same on Sat... Your will feel fine. (But no point reinjecting it on Sat before the race...like you said - it is a short race)
roarkstr Posted June 10, 2009 Posted June 10, 2009 I donated blood last year in the week before the 94.7 and certainly felt the effects for 2 - 3 weeks afterwards. Biologically my understanding is that the blood volume recovers in 48 hours (drink lots of water) but your red blood cell count takes 3 - 8 weeks to recover to the pre-donation level. In terms of the decrease in performance I would say it is about 5-10% in the first week reducing over the next few weeks. This is because you normally donate one pint of blood (0.57 litres) and your body contains about 5 litres of blood so you lose about 10% of your red blood cells which are responsible for transporting the oxygen to your muscles. Hope that helps.
Aedon Posted June 10, 2009 Posted June 10, 2009 I donated about three weeks ago.And still struggle up hills to get going.Oh wait, I always struggle to get going up hills.
Cranky Posted June 10, 2009 Posted June 10, 2009 im no doc. but if I eat well the day i give blood im fine the next day. maby thats just me. Oh and eat lots of raisins. . .its a iron supplement which help build red blood cells.-well thats what i was told so I could be wrong Hey Wheelz, there are much better and tastier iron supplements than raisins. A good steak or Nando's chicken breast has more iron than a fistful of raisins, and the iron from meat is better absorbed than that from fruit/veges! But lots of raisins will improve gut transit time, if you're keen on that!
Marius Posted June 10, 2009 Posted June 10, 2009 Recovery and time between donationsDonors are usually kept at the donation site for 10?15 minutes after donating since most adverse reactions take place during or immediately after the donation. [49] Blood centers typically provide light refreshments such as tea and biscuits or a lunch allowance to help the donor recover.[50] The needle site is covered with a bandage and the donor is directed to keep the bandage on for several hours.[1]Donated plasma is replaced after 2-3 days.[51] Red blood cells are replaced by bone marrow into the circulatory system at a slower rate, on average 36 days in healthy adult males. In that study, the range was 20 to 59 days for recovery.[52] These replacement rates are the basis of how frequently a donor can give blood.Plasmapheresis and plateletpheresis donors can give much more frequently because they do not lose significant amounts of red cells. The exact rate of how often a donor can donate differs from country to country. For example, plasma donors in the United States are allowed to donate large volumes twice a week and could nominally give 83 liters (about 22 gallons) in a year, whereas the same donor in Japan may only donate every other week and could only donate about 16 liters (about 4 gallons) in a year.[53] Red blood cells are the limiting step for whole blood donations, and the frequency of donation varies widely. In Hong Kong it is from three to six months,[54] in Australia it is twelve weeks, [55] in the United States it is eight weeks [56] and in the UK it is usually sixteen weeks but can be as little as twelve.[57]
GFishy Posted June 10, 2009 Posted June 10, 2009 I believe that Bernhard Kohl is the man to ask!! I think he is hot in demand at this moment
brianj Posted June 10, 2009 Posted June 10, 2009 I do it for the weight loss ;-).. but up to 3 weeks before an event
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