heart rate discrepancy outdoors/turbo trainer
Posted: Thu Jan 31, 2013 9:43 am
Hi all,
Am new to this forum, but have lurked for a while. Didn't want to hijack the thread 'heart rate- where should it be' so started this as a new topic.
After many years of running I got back on my bike about a month ago (running related injuries mounting up). I am a 55 year old female.
I ride a mountain bike in hilly terrain, nothing too technical, and on days I can’t ride use my turbo trainer. I try and simulate my outdoor rides by constantly changing the resistance on the turbo trainer, but I cut out the downhills to use my time as efficiently as possible.
I use a heart rate monitor as feedback that I am working hard enough. Here is what I found:
When I ride outdoors, my heart rate on steep hills goes to 170bpm, which on the ensuing downhill drops very quickly to around 115. Riding at 170bpm naturally feels very hard and I breathe heavily, but it doesn’t feel like I have to stop (the highest heart rate I have ever measured was running intervals at 176bpm which is spot on using the Sally Edwards calculation from the other thread).
When I ride on the turbo trainer, when simulating a hill, I can just nudge 160bpm before I simply run out of puff. The resistance feels similar to riding hills outdoors and I stay seated so as to simulate mountain bike riding on gravelly surface.
Am curious as to why my heart rate goes up quite easily when I am outdoors but not on the turbo trainer? Has anybody else found the same thing?
Cheers,
Sturgis
PS: I should mention that I have a 2nd degree AV block Wenkebach (also called “Athlete’s heart”) which is benign, but causes my resting heart rate to be very low (down to 37 -38 overnight). All symptoms usually disappear during exercise. I am particularly interested to hear from other riders with this condition.
Am new to this forum, but have lurked for a while. Didn't want to hijack the thread 'heart rate- where should it be' so started this as a new topic.
After many years of running I got back on my bike about a month ago (running related injuries mounting up). I am a 55 year old female.
I ride a mountain bike in hilly terrain, nothing too technical, and on days I can’t ride use my turbo trainer. I try and simulate my outdoor rides by constantly changing the resistance on the turbo trainer, but I cut out the downhills to use my time as efficiently as possible.
I use a heart rate monitor as feedback that I am working hard enough. Here is what I found:
When I ride outdoors, my heart rate on steep hills goes to 170bpm, which on the ensuing downhill drops very quickly to around 115. Riding at 170bpm naturally feels very hard and I breathe heavily, but it doesn’t feel like I have to stop (the highest heart rate I have ever measured was running intervals at 176bpm which is spot on using the Sally Edwards calculation from the other thread).
When I ride on the turbo trainer, when simulating a hill, I can just nudge 160bpm before I simply run out of puff. The resistance feels similar to riding hills outdoors and I stay seated so as to simulate mountain bike riding on gravelly surface.
Am curious as to why my heart rate goes up quite easily when I am outdoors but not on the turbo trainer? Has anybody else found the same thing?
Cheers,
Sturgis
PS: I should mention that I have a 2nd degree AV block Wenkebach (also called “Athlete’s heart”) which is benign, but causes my resting heart rate to be very low (down to 37 -38 overnight). All symptoms usually disappear during exercise. I am particularly interested to hear from other riders with this condition.