pan y agua
Join Date: Aug 2005
Bikes: Wilier Zero 7; Merlin Extralight; Co-Motion Robusta; Schwinn Paramount; Motobecane Phantom Cross; Cervelo P2; Motebecane Ti Fly 29er; Calfee Dragonfly Tandem
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the .92 of the average is your LTHR, so 172. The assumption behind the test is that most people can maintain their LTHR for 1 hour (that's your functional 1 hour threshold, which is essentially intechangeable with LTHR) In an 8 minute effort, on average people can do 110% of their LT or functional threshold. Hence you take the 8 minute HR, and mulitiply by .92.
I did a CTS field test this winter 2 days after having a LT test done in a performance lab, and for the me my LTHR came out exactly the same.
By the way, you might try it again on the road doing 2 3mile TT's. The HR shift from heat on the trainer can affect it, and I think the road field test is a little more accurate.
Last edited by merlinextraligh; 08-31-06 at 12:26 PM.