---
title: "Your mind gets tired long before your legs do."
date: 2025-12-21
categories: ["Recovery & sleep","Mindset"]
url: https://www.semiprocycling.com/digest/your-mind-gets-tired-long-before-your-legs-do
author: Damian Ruse (SEMIPRO Cycling)
---
# Your mind gets tired long before your legs do.

![](https://www.semiprocycling.com/digest/images/7e99b31e51936da7331ee8b0.webp)

This study reviewed controlled trials showing that mental fatigue harms both cognitive and skilled performance in athletes. Tasks like the Stroop test or prolonged decision-making impaired pacing, technique, and decision quality, even though physical capacity stayed the same. The key point is that mental fatigue doesn’t change your physiology. It changes **how you apply it**. Riders under mental fatigue choose poorer pacing, misjudge effort, and struggle to sustain output even when their muscles are capable.

This gives us a clear mechanism: training load sits on top of life load. Cognitive demand raises perceived effort, which changes behaviour, which changes performance.

This explains the disconnect between “I should be fit enough for this” and “why does this feel harder than it should?”. If you go into key sessions after heavy cognitive effort, your numbers will not reflect your actual fitness.

Practical fix: reduce deep cognitive tasks before important rides, use simpler pre-ride routines, and expect higher RPE on high-stress workdays. You can’t out-train mental fatigue, but you can manage the timing.

Source: [https://journals.lww.com/acsm-...](https://journals.lww.com/acsm-msse/abstract/2025/11000/twenty_four_hour_low_energy_availability_induced.22.aspx)

## On my mind: Training in State

There was a stretch where I thought more structure solved everything. If I could write the perfect plan, athletes would hit perfect sessions. But the longer I coach, the clearer it becomes that the limiter often isn’t the plan or the legs. It’s the state you arrive in.

A rider can be physically ready yet mentally drained. And drained riders don’t pace well. They don’t listen to their body. They overshoot early and fade late.

Now I care far more about the state someone brings into a session than the session itself. Get that right and the training works. Miss it and even the best plan struggles.

Damian