I know some people on this thread are/have considered stopping donating but please consider carrying on. If you really feel rough after donating you should speak to the doctor at the donation session - they can advise you of the best course of action. I feel strongly that more people should give blood - my wife works in the NHS as do some of our friends and it is universally acknowledged that stocks do get too low too frequently. I also try to encourage other people to think about donating if they don't do so already.
BTW - I did a "dry run" 13.4 mile run (for my half marathon at the end of the month) today (five days after my donation) - felt ok generally but it was warm and windy here in the West Midlands. Knackered at the end but done in 1hr. 48 mins so quite pleased...
The story goes that when they brought some equipment left from previous unmanned missions back from the Moon on one of the last trips, they examined them for bacteria and viruses. Not only did they find them (lab technician had a cold) they were also able to bring them back to life. That was after three years in temperatures of between -200C or so and +200C in a fairly sterile environment.
So three and a half weeks living in a nice warm human being should be no problem.
Eckytump. wrote (see)
Oh yes I can imagine very stressful but yes so rewarding. Are you all prepared for your HM.
Just another thing - if anyone is considering donating - see http://www.blood.co.uk/
I only have problems with low blood count if I try to give after a long hard session which would tie in with what mobilekat states above...........
I just take it easy for a few days afterwards................as runners are amongst the fittest people in the country ...it would be a shame if they didn't give blood just because it might mean that they re not on full power for a couple of training sessions..................just avoid giving before a race and no problems............
its amazing what they can do from just one donation of blood................
I have given up on the idea of giving Blood. On Two occasions I have turned up at a so called drop in sessions, only to be told that they were full. I was then advised that the next time I should telephone in advance, and make an appointment. Guess what I tried doing this and they didn`t have any appointments available at the times that I could attend. What made me laugh was the fact that they were advertising on national TV quoting "Blood stocks are low".
I always book, I wouldn't turn up without an appointment after a few times when I would just turn up & have to wait ages.
I used to donate in one of their mobile units, they were having to turn people away as they didn't have the space to accommodate. Even those with appointments had an additional 15 minute delay.
Just to say that I gave blood in July (for the first time in 5 donations - I either don't have enough iron, or, last time, the flow was too slow and I didn't give a full bag). The day after I ran my local parkrun and although I did an ok time, I was absolutely exhausted and faded half way through. About 2 weeks later I did a local 10k and faded half way through again and the same happened on another 10k a few days later.
About 3 weeks later I did my parkrun again and although I was only 4 seconds faster than the previous run it felt a lot more comfortable. I did the Overton 5 on Saturday and feel like I am back to normal - 6 weeks on.
So my conclusion is that giving blood and running (well) do not mix and I will try to make sure that I give at least 3-4 weeks before any race I want to do in future. I wouldn't let it put people off though - if you can give, please give. There are so many people who can't or won't.
Having browsed around a bit, I think this gives a reasonable summary. If you time your donation well before an endurance event (maybe even 8 weeks) you will have recovered. But anyway if I were a donor I think I would still carry on donating even knowing I had a possible loss of performance of 7% at one week after, for example.
The fluid loss is recovered in a couple of days, but the red blood cells need a month or more, apparently. Since they carry oxygen, but VO2 max is not the be all and end all of performance, one might expect some diminishing effect as time goes on.
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