Wrist HR Monitors Misread Effort by 20 BPM on Descents
On -9° descents, HR stays at 91% HRmax while VO2 is only 68%—wrist PPG sensors get fooled. See why a Polar H9 chest strap or Moxy Monitor fixes it.
On -9° descents, HR stays at 91% HRmax while VO2 is only 68%—wrist PPG sensors get fooled. See why a Polar H9 chest strap or Moxy Monitor fixes it.