Tool

Traffic Light Model

Dynamic adjustment of today's training. Fill in the inputs that are relevant for you, either in the morning or during the session.

1

Before training – Passive measures

Morning data and subjective status

Resting heart rate High weight

Measure in the morning. Compare with your average over 7 to 14 days.

HRV (heart rate variability) High weight

Both large drops and unexplained increases can indicate stress.

Stair test High weight

Focus on how your thigh muscles feel in a familiar flight of stairs.

Sleep quality Moderate weight

One poor night on its own is not critical.

General feel and motivation Moderate weight
2

During the session – Warm-up

After 10 to 15 minutes of easy running

Warm-up heart rate High weight

At the same easy pace you normally use.

Warm-up feel Moderate weight
3

During the session – Threshold rep

Assessment of the first rep (3 to 6 min)

Heart rate at threshold pace High weight
Feel at threshold Moderate weight
Lactate (optional) High weight

Fill in at least 3 parameters to get an assessment

How to interpret the traffic light

Green light: Everything looks good. You can extend the session by 20 to 40% or increase the intensity slightly.

Yellow light: Within the normal range. Complete the session as planned, but do not add extra load.

Red light: The body is not ready. Stop, switch to an easy jog, or take the day off. The combination of markers is what matters.

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