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What is your sex?
So we can calibrate fuelling and hydration targets, since energy use and sweat response differ between men and women.
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What's your age?
So we can adjust intensity zones and maximum heart rate, which decline as you get older.
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What is your weight (in kg)?
So we can calculate carbohydrate burn per hour and scale fuelling needs to your body mass.
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What is your height (in cm)?
So we can combine it with weight to estimate body size and refine energy calculations.
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What is your resting heart rate (HRrest, bpm)?
So we can gauge baseline fitness and calculate heart rate reserve, which improves training zone accuracy.
Leave blank if unknown and we will use 60 bpm.
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What is your maximum heart rate (HRmax, bpm)?
So we can set the ceiling for effort levels, interpret your average heart rate, and model carbohydrate use at high intensity.
Leave blank if unknown and we will calculate as follows: 211 - (age * 0,64).
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What is your average heart rate during that specific training or race (bpm)?
So we can place your effort in the right zone and calculate hourly carbohydrate use.
Leave blank if unknown and we will use 75% of your HRmax.
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What type of session are you planning for?
So we can adjust fuelling demands, since racing usually requires higher carbohydrate intake.
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Please select your workout
So we can account for discipline-specific energy use and hydration demands.
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Select the duration/intensity of your training
So we can refine your carbohydrate burn rate and set the hourly fuelling target.
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Roughly how many hours does your training or race take? Try to be as precise as you can.
So we can scale your hourly target into a complete plan and define total carbohydrate needs.
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The Ecosystem Beta
Ecosystem
ID 0.1
Athlete type
To be defined
Date
Sun 25 Jan 2026
Warrior
To be defined
52.2953° N, 5.1604° E