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Attackpoint - performance and training tools for orienteering athletes

Discussion: Compensating for climb on a treadmill

in: Orienteering; The Website

Sep 8, 2018 9:39 AM # 
HitnHope:
Attackpoint calculates an alternative pace, taking the amount of climb into account. I presume it assumes start & finish at the same level? On a treadmill there is no downhill, so climb is accumulative. I've been adding an extra 50% climb to allow for the lack of downhill. Any thoughts?
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Sep 8, 2018 11:38 AM # 
ken:
Attackpoint always thinks of climb as accumulative (going downhill doesn't subtract from climb, just adds to "descent" which is not logged), and there is no assumption of start/finish at the same level.

if you want an accurate climb value from the treadmill, you can calculate that from your average incline. AP actually has a calculator for that on the add-training form. After you enter a distance, click the climb units (m or ft) and you can enter the incline in degrees or grade (grade is typically what treadmills display).

You can also make it a bit more complicated if you want to adjust for the lack of wind resistance. On a treadmill you are effectively always running with a tailwind, and you can compensate for the reduced effort with some extra incline (about 1-2 grade % points depending on speed). How you account for that in your logging is up to you. My personal preference is to ignore climb when the grade is 2% or less, or make a note of the incline setting in comments.

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