Hello,
Today I ran 12 x 400m with 200m recovery.
I did all of them between 68-72 seconds... there was a 20 mph headwind which made the last 200m extra difficult. For instance, in a couple of my reps I went out in 32 for the first 200m and ended in 68 (so 36 for the last 200m!). So, would my interval times have been better if there was no wind? Also, by how many seconds would you estimate a 20 mph wind effect 400m times (if any)?
Thanks!
Just compare your typical times. Remember you have a tailwind helping you on the first part so it likely only hampers you slightly because you are tired when facing the wind.
Bottom line is that it doesn't matter much at all.
you may even grow a pair wrote:
Just compare your typical times. Remember you have a tailwind helping you on the first part so it likely only hampers you slightly because you are tired when facing the wind.
Bottom line is that it doesn't matter much at all.
Agree with this. We all hate running intervals with strong winds but you are benefiting as well with the wind at your back. I would say maybe makes it 1 second slower but not much more. 20 MPH is not that bad.
That's every single day ever in the Midwest. I set school records in 20 mph headwinds. Why, I walked uphill to school in snowstorms both ways, too.
The only thing that really matters is how you handled the changes in technique.Running with the wind is different than running into it. Did you successfully adjust?
Its a good lesson for you.
From my understanding of fluid mechanics, having a tailwind 50% of the time and a headwind 50% of the time still slows you down, maybe a second or two per 400? Probably not much more than that though, it can make it much more mentally difficult though.
I didn't run too many 400 repeats, but 20mph added about 8 seconds a mile in races.
AFFECT is the verb you seek.
EFFECT is a noun.
SAlly Vx wrote:
you may even grow a pair wrote:
Just compare your typical times. Remember you have a tailwind helping you on the first part so it likely only hampers you slightly because you are tired when facing the wind.
Bottom line is that it doesn't matter much at all.
Agree with this. We all hate running intervals with strong winds but you are benefiting as well with the wind at your back. I would say maybe makes it 1 second slower but not much more. 20 MPH is not that bad.
This is not true. A headwind hurts you more than a tailwind helps you. I do, however, agree that it would not hurt you as much as you think it did. I would estimate those conditions hurt you 2 seconds on a 400 max.
FFF wrote:
That's every single day ever in the Midwest. I set school records in 20 mph headwinds. Why, I walked uphill to school in snowstorms both ways, too.
That was you!? Do you remember me? I was the guy walking downhill both ways. I used to wave to you each day. Good to see you're still around.
This Running Calculator gives estimates of the effect of wind on running pace based on the Daniels book: