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Grace Parry / April 24, 2025

Why Do My Knees Hurt More When I’m Running On Tired Legs?

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In this episode, I explore the relationship between knee pain and running, particularly when fatigue sets in. I discuss a recent study that examines how high-intensity running affects lower limb injury risk and the biomechanics involved.

The findings suggest that as runners fatigue, the stress on their knees increases due to changes in muscle activation rather than changes in running form. I emphasize the importance of understanding these dynamics for effective rehabilitation strategies, advocating for tailored approaches based on the phase of recovery.

Takeaways

  • Knee pain during running can be exacerbated by fatigue.
  • Fatigue affects muscle activation patterns, increasing stress on the knees.
  • Research indicates that stress migrates from lower legs to knees when fatigued.
  • Avoiding running to fatigue may be beneficial in early rehabilitation phases.
  • In later rehabilitation phases, strategically engaging with fatigue can build tolerance.
  • The quadriceps work harder as calf muscles tire during running.
  • Understanding biomechanics is crucial for effective knee pain management.
  • Higher loading can lead to beneficial remodeling if within adaptive capabilities.
  • Stress management is key in rehabilitation and recovery phases.
  • Running can be an effective rehabilitation tool when approached correctly.

Would you like some guidance on how to adjust your training and use fatigue strategically depending on the nature of your injury and where you are in your recovery journey? Just click the link below, and we’ll have a chat about how our experienced coaching team can help you in your rehabilitation journey.

Book a Free Call

Filed Under: Podcast Tagged With: Knee Pain

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Disclaimer

I am a Registered Physiotherapist within the province of Alberta, Canada only.

Any online consultations with individuals located outside of Alberta will be in my capacity as a Certified Running Coach. I do not provide Physiotherapy or injury rehabilitation services to anyone located outside of Alberta, Canada.

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