QUOTE (caz-art @ Nov 23 2008, 02:19 PM)

I usually run 3 times a week, about 3 miles (5k) or so......and I don't usually have this problem, but yesterday on a 5k 'turkey trot' on the last 1/4 mile I suddenly became completely breathless...my airways totally constricted and I thought I was going to keel over....I did keep running though and my breath recovered, but I had to slow down (just when I needed to speed up!) and after finishing I felt really scared of what happened.
It was very cold ( about 3c or 32f).....
I did a 5k in September and it was warm and there was a steep hill at the beginning, again, once I reached the top of the hill I could barely breathe, almost wheezing/forcing the air in and out...I recovered and finished the race though.
I don't suffer from asthma...so what could this be?
I'm upset and mad because I am trying to better my times on a 5k, but now am fearful of doing another in case this happens again.
Anyone know why this happens?
Caz
Cold weather constricts blood vessels and they in turn may constrict airways, could be in your case.
If you don't have asthma, it is wise to consult your doctor. It seems that cold weather caused cardiovascular spasm, and your heart did not meet the demand.
Another option is to run indoors when it is cold outside, it is better not to overexert your heart running hills in cold weather.
I am not big on running, I prefer brisk long walks; but I have read that our heart works differently on when we walk/run hills, even very fit individuals huff and puff on a steep hill.
WE went to a lighthouse last weekend, the steep hill is like climbing 30 storied building, and while last time I almost ran to the top, this time we had to stop twice. I did not went out of breath but because the climb was too steep, I had to catch it up twice.
I also saw many adults in mid 20s who huffed and puffed trying to make it to the top.
I hope there is nothing serious, but better safe, so talk to your doctor, and take it easy.

Best.
I.