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2hrs. of climbing in zone 4(1 post)

2hrs. of climbing in zone 4LeadvilleBlues
Jun 10, 2003 9:03 PM
Today's workout turned out to be a sea level to 6000ft climb. Thought I'd ride at a moderate pace, it put me into a Lactate Theshold 80-85% Zone 4 for the average HR for 2 hrs. How many days a week should I stay with this ride ? Bear in mind I'm 50 yrs. old and fairly fit, sub hour 40K's TT's were never a problem when I was 12 yrs. younger. Just now starting to pick up the pace and ride more, as my local hill climb (sea level to 10,000ft ) is 12 weeks away.