Keiser M3 Spin Bik
I did a heart race test on a Keiser M3 cycle. It said I averaged almost 30 mph for a 40 min test. That's simply not possible, given my level of bike skills (I typically average 17-20 mph on the bike in a tri). Is there a commonly accepted discount or formula for how to translate a test session on a Keiser to the 'real world?'
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Ideally it is a bike that you have used before so you understand how it works and how to understand the data. :-(
It sounds to me like the computer is Miss calculating the wheel circumference, so it's giving you for nominal distance for each pedal revolution. I have no idea how you can modify that on that piece of equipment, but I do know how to do it on a power meter.
At the very least you can use the heart rate information, but it won't give you a good sense of your improvement unless you have a better means of training on a more consistent or reliable piece of equipment.
Thanks for above.
Very helpful.
My new q on my most recent bike test is that my LTHR was 122.
Seems awfully low, as on race day I'm comfortably hanging out in the 130's with no impact on speed or endurance.
Am I just not working hard enough during the test?
I consistently can't get my heart rate up during spin bike sessions to emulate race day conditions. It's a Catch-22, if I crank up the resistance, my rpm's drop and my heart rate drops. If I lower resistance, i could be pedaling like Fred Flintstone and still not get above 130.
In short, why do i suck, Coach Patrick?
A couple of things...yes that HR is low. Your cadence should be between 85-95 rpms, but if you are on a spin bike vs a fluid trainer, the resistance curves can be really whacky / not "true".
Second, riding inside = lower HR always...and 10 beats sounds pretty close. No weather. No cars. No turns. No hills. My outdoor HR is always higher...from the outset of the workout.
For you, moving forward, a good warm up helps. Then I'd ride the sessions by PE (workout says 10' interval, this effort I am doing will get me to the 9-minute-mark before I go into serious pain and I will hang on).....let the HR be a secondary, "what did I just do" confirmation metric.