I conduct my Triathlon training predominantly using HR as the primary metric. Should I be using for HR Training Load “Time in HR Zones” or “HRSS (Normalised TRIMP”? I have searched prior posts on it but still a bit confused at what is best for me. I have a power meter for my bike and Garmin also measures power for my runs. Swim, of course, there is no Power and is solely measured on pace but I do measure HR during swims. Thanks for your help.
Cheers Adam.
Opinions will differ on this matter but here’s mine: (taking into account that I know nothing regarding swimming)
-
For load, use power if you have the metric because power is the most direct external load measurement and least influenced by other circumstances like heat, fatigue, lag… This is certainly the case for cycling. Running, a bit less, because running power is the result of an algorithm.
-
For time in zones, I prefer Power for activities with lots of surges. Short interval workouts or races for example. For steady state work, I prefer HR, and with a simple 3 zone system with 2 physiological borders AeT and AT. Some will prefer adding VO2.
-
Time in HR zones (for Load) should only be used if you have enough activity data containing Power and HR. Otherwise the model can’t determine a correct outcome.
-
For workout targets in cycling I use Power for interval workouts, HR for steady State. In running this becomes Pace and HR.
It’s a matter of determining what reflects your way of training best and what corresponds most to your subjective feelings.
2 Likes
Thanks, I will make the necessary adjustments.
Tx for the detailed answer. However I think you meant to say “Time in zones” here. HRSS doesn’t need any previous rides with power and HR, only correctly set resting, max and LTHR.
1 Like
Yes, mixed them up here.
Edited my post to reflect that error.
Tanks for correcting me!
2 Likes