Ouch is right. While a HRM is a useful tool it is not the only input that
needs to be used and somethimes a stethoscope is much more valuable than a
simple HRM readout. For example if the heart rate is not steady but is
erratic. This is why vets will listen to the heart rate rather than taking
the output of a HRM, there so much more info there than the HRM will tell.
I have pulled when the heart rate was running normal and the recovery to
the pulse parameters was fairly rapid. Why did I pull, Misty was not
drinking which is not normal. It was a hot (and very humid) day and she
was hot - but the HRM showed every thing okay - but they weren't. So we
pulled at 35 and happy we did since several marginal horses went on, with
on having to be treated on trail and several others not coming to
parameters at the end of the ride and not completiting.
I pulled and there was no harm done (she was eatting and drinking in 15
minutes and wanting to jump her fence and go catch her buddy in 30
minutes). I didn't believe the HRM to be sole indicator of her condition
and I am sure glad I didn't.