by Alan M » Tue Apr 17, 2012 2:25 pm
[quote="Dombo"]Some interesting stuff here:
http://www.livestrong.com/article/26458 ... altitudes/FWIW at the end of a Pyrennean Etape, aged 45, on Hautacam, albeit nowhere near your altitude, I couldn't get mine over 140. That HR is my comfortable ride-all-day level.
yes I had read this - although even after 3 weeks I don't seem to have my normal heart rate for hard riding - so I am doing intervals at the local closed circuit - this is at under 5000 feet so probably a bit richer in Ox - so off to do it now MOTIVATE!!!!! [url]http://app.strava.com/rides/6578605[/url]