tag:blogger.com,1999:blog-892506252169617105.post4032271603012669557..comments2023-10-23T17:32:15.824-04:00Comments on Working it out...: Zone 2, Zone 2 wherefore art thou Zone 2?Karenhttp://www.blogger.com/profile/13254493351463617215noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-892506252169617105.post-18429431871468311672009-02-09T19:27:00.000-05:002009-02-09T19:27:00.000-05:00I have been doing my training by HR zones this yea...I have been doing my training by HR zones this year and I too have noticed how hard it is to even try to run in Z2.Kevinhttps://www.blogger.com/profile/13288243991974155609noreply@blogger.com