Now this method is especially useful for

calculating the TRIMP of an interval training session.

Because interval training sessions are all different intensities and

you need to calculate each separately.

And it's hard to come up with an actual training session workload.

So you simply calculate the TRIMP for each interval, and

then you just sum them together.

For example, assume the athlete does a workout of 5 intervals of 5 minutes each,

and they do these at 95% of their maximum heart rate.

And the athlete recovers by easy jogging for

3 minutes at 70% of their maximum heart rate.

So we've got two different training intensities here.

So the TRIMP for the run part of the workout is 5 intervals and

they were 5 minutes each.

And the heart rate zone was 5, and that's equal to 125 units.

Plus there were 5 easy jogs in this session, and they were 3 minutes long.

They were done in zone 2, and that equals 30 units.

Therefore, the TRIMP is equal to 5 intervals times 5 minutes,

times the heart rate zone of 5,

plus 15 minutes of light jogging in the heart rate zone of 2.

And that is equal to (25 x 5)

minutes + (15 minutes x 2), and

that totals up to be 125 + 30 = 155 units.

Okay, so here's another hypothetical example

of a week's training schedule for an advanced runner who trains twice a day.

So how do you work this in, calculating the training zones for this?

The training sessions are different on each day node.

So you also want to be able to compare each day.

On Monday morning, the athlete does a 30-minute run in a heart rate zone of 2,

if you look at the top line there.

And the TRIMP for that run is 60.

This is the yellow for Monday.