Originally Posted by
yarbrough462
Why does the actual number matter if the reading is consistent? The only thing I could thing would be if I had more than one and was swapping back and forth. Unfortunately, that isn't the case for me...
For the same reason that the apparatus used to measure out the 500 mg dose of acetaminophen in your Extra Strength Tylenol needs to be accurate. Training stress is like a drug with a therapeutic window, below which it is ineffective and above which it is toxic. There's individual variability, but if you want a dose near the top of the window, it's nice to be calibrated.