Has anyone experienced a lower heart rate and lower performance at altitude?
My wife seems to struggle at altitude but after reviewing her files I’m grasping for a reason that her HR would be lower at 9000 feet than when she races at 5500 or 7500 feet? This is not just one race, it is multiple races we’ve seen this happen.
Has anyone seen a study or heard of a reason that this might be the case? My expectation would be to see an elevated HR for the power output and that is what I see in the literature. I am at a loss as to why her HR would be lower unless there is some sort of mental reason that the lower o2 saturation basically scares her brain into backing off more than she needs to.