In a previous blog (here: marcoaltini.substack.co…), I covered a few ways in which we can use workout data to track progress and estimate performance (e.g., critical speed or race times).

Today I’ve been looking at the low intensity side of things, putting together a script to track how internal and external load evolve over time during easy training sessions, for the athletes I coach.

This is what we could call aerobic efficiency, or the ability to run quicker at a lower heart rate.

Below is the data for a runner I’ve been working with since March, showing great progress in the past few months.

Love coaching <3

p.s. If interested in working with me, apply here: marcoaltini.substack.co…

Thank you!