Improving 10k time at altitude

[MarkCo]

Hi TheEd

Hope you're well.

I've now finished the 3 recovery days (rested the first and 30 min easy runs on the other two), so planning on starting the program again tomorrow.

For Day 1 should I do as before - i.e. 60-70 mins easy keeping HR around 140?

Any other tweaks needed? I'd like to do a 1km trial to see how fast I can do this - when could I slot that in? With the altitude / amount of oxygen seemingly being the restricting factor in my faster paced runs, I wonder if I should do some faster but shorter intervals as well to be improving my leg speed?

thanks