# eTRIMP vs TRIMP and medical science

**URL:** <https://forum.intervals.icu/t/etrimp-vs-trimp-and-medical-science/133076>\
**Category:** Feature Requests\
**Created:** [16 October 2026 14:43 UTC](https://forum.intervals.icu/t/etrimp-vs-trimp-and-medical-science/133076 "2026-10-16T14:43:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![nfkb](https://forum.intervals.icu/user_avatar/forum.intervals.icu/nfkb/32/30633_2.png) [@nfkb](https://forum.intervals.icu/u/nfkb)\
**Post date:** [16 October 2026 14:43 UTC](https://forum.intervals.icu/t/etrimp-vs-trimp-and-medical-science/133076/1 "2026-10-16T14:43:54Z")

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Hello

I am following the medical litterature on atherosclerosis and endurance sports. Lately, the belgian teams from the Master@Heart study have published a paper with real data from wearables. They have used the eTrimp training load score in their paper in Circulation (NCT03711539)

Thanks to LLM, I have created a new field called eTRIMP to compare my data with the study population data.

> The JS code is as follows
> 
> (function () {  
> // 1. Récupération du flux de fréquence cardiaque (corrigé en “heartrate”)  
> let hrStream = streams.get(“heartrate”);  
> if (!hrStream || !hrStream.data) return null;  
> let hrData = hrStream.data;
> 
> // 2. Récupération des paramètres de l’athlète (ou valeurs par défaut)  
> let maxHr = athlete.max\_hr || 180;  
> let restHr = athlete.resting\_hr || 50;  
> let hrReserve = maxHr - restHr;
> 
> let totalEtrimp = 0;
> 
> // 3. Boucle sur chaque point du flux (enregistré à 1 Hz = 1 seconde)  
> for (let i = 0; i \< hrData.length; i++) {  
> let hr = hrData[i];  
> if (!hr || hr \<= restHr) continue;
> 
> ```auto
> // Calcul de l'intensité relative (fraction de la réserve cardiaque)
> let fraction = (hr - restHr) / hrReserve;
> 
> // Attribution du coefficient de zone (Z1=1 à Z5=5)
> let weight = 1;
> if (fraction >= 0.90) weight = 5; // Zone 5 (Max / Anaérobie)
> else if (fraction >= 0.80) weight = 4; // Zone 4 (Seuil)
> else if (fraction >= 0.70) weight = 3; // Zone 3 (Tempo)
> else if (fraction >= 0.60) weight = 2; // Zone 2 (Endurance fondamentale)
> else weight = 1; // Zone 1 (Récupération)
> 
> // Chaque point représente 1 seconde, soit 1/60ème de minute
> totalEtrimp += weight * (1 / 60);
> 
> ```
> 
> }
> 
> // Retourne la valeur finale arrondie à une décimale  
> return Math.round(totalEtrimp \* 10) / 10;  
> })();

does it sounds good to you ?