HRSS (normalized TRIMP)

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Hi,
Can someone give me a layman’s definition and explanation on what HRSS (normalized TRIMP) is? I see under all my swim, bike and run activities that it was set to Average HR, however, recently saw posts on HRSS and that it was a more accurate measure (or something like that). I train by HR as my Number 1 metric so want to make sure it is being accurately calculated in Intervals under my TL. Thanks.

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HRSS = Heart Rate Stress Score - A TSS (load) figure assigned if traditional TSS cannot be determined due to absence of a power meter.
TRIMP is “Training Impact”
In this instance your Training Impact is measured by your heart rate (HRSS).
So basically it’s assigning a ‘load’ figure to your workout if you didn’t have a power meter to measure the load.

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Click on the links to get more info:
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Thanks @nasatt so if I have a power meter for my cycling then best to measure TSS this way and not via HR, is that right? What would you think is the most accurate?

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Yea. TSS, with power, whilst not perfect (eg. Not all TSS is crated equal…you could do a low intensity ride for longer or a high intensity ride in a shorter period and get the same TSS but feel fatigue differently in either scenario) it is the most accurate measure of (external) work done - load. Combined with HR as another data point to measure internal strain will give you a rounded picture of how hard/easy or otherwise your training is.

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Ya. 100%

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Thanks, I’ve changed in Bike settings to the following. Does this look right Olly?

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Yep same settings as mine apart form I use time in HR zones for HR load calc (but I never get a calc from this I use as I have consistent power across all my bikes using the same power pedals)

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