Running With Pain? Here’s How to Know When to Push Through and When to Adjust

Physical therapy guidance from the running specialists at 901PT Memphis

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Have you started noticing pain or soreness during or after your runs? If so, you are not alone. At some point, almost every runner will deal with discomfort, tightness, or pain that complicates their training.

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The good news is that some soreness is normal. But the tricky part is knowing what to do when it shows up. Should you take a day off? Slow down? Push through? How do you know if the pain you're feeling is something to ignore, manage, or stop for?

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Most runners do not have a system for answering these questions. And making the wrong decision in the moment can be the difference between a temporary issue and a long-term injury.

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At 901PT, we have worked with hundreds of Memphis runners. One of the most valuable tools we teach is a simple, effective system for deciding how to adjust your running when pain shows up. We call it the Red, Yellow, Green Light System.

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How to Know What Level of Pain You’re In

This system gives you a reliable decision-making framework so you can keep running safely, build your tolerance, and prevent bigger setbacks.

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1. Rate Your Pain During the Run

Start by rating your pain on a 0 to 10 scale. Think about what you feel during the run, not before or after.

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Green Zone (0–2 out of 10): You are aware of something feeling off or slightly different, but it is not affecting how you move. For example, you might think, “My right knee feels a little different than my left.”
Yellow Zone (3–5 out of 10): The discomfort is noticeable and not symmetrical. You may think, “My right knee is definitely bothering me more than my left.”
Red Zone (6 or higher out of 10): Pain is sharp, burning, shooting, or severe. It may cause you to alter your stride, slow down, or stop running. It may even take your breath away.

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2. Monitor How the Pain Changes During the Run

Now assess the pattern of your pain throughout the run.

If your pain starts at a 1 and stays at a 1 the entire run, you are still in the green zone. No changes are needed.
If pain starts at a 1 and climbs to a 3 by the end, that is the yellow zone. Stay at your current level of running for a while and focus on letting your body adapt.
If pain starts low and increases to a 6 or higher, that is the red zone. You need to slow your pace, walk, or stop and see if it improves. If the pain stays elevated, that is a sign you are doing too much.

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3. Pay Attention to Pain After the Run

This part is often overlooked, but what happens after your run matters just as much.

If you feel fine after your run, you are in the green zone.
If soreness or pain lasts less than 24 hours, you are in the yellow zone. This means your body is still adapting. Do not progress anything yet, but you can maintain your current training.
If pain lasts longer than 24 hours, that is a red zone indicator. You likely overreached in your training and need to adjust.

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What If You Feel Fine While Running But Hurt Later?

This happens often and can be misleading. Just because you feel good during the run does not mean the run was pain-free overall.

Some runners feel great while running but experience pain later that day or the next morning. For example:

Pain when walking after sitting for a while
Pain going down stairs
Stiffness or soreness when getting out of bed the next morning

This is common in conditions like plantar fasciitis, Achilles tendinopathy, or patellar tendon pain. If the pain reaches a 6 or higher at any point after the run, it still counts as a red light.

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When Can You Increase Your Mileage or Intensity?

Your ability to progress depends on your current zone.

Green zone: You are cleared to increase one variable at a time. This could be distance, frequency, or pace. Monitor closely as you increase.
Yellow zone: Maintain your current running level. Do not increase anything until your pain levels drop back into the green. This is a time to build strength and tolerance at your current level.
Red zone: You must adjust something. That may mean reducing mileage, slowing your pace, or taking a few days off. The goal is to return to yellow or green without escalating symptoms.

Trying to push through red zone pain can lead to more irritation, longer recovery time, and potential time off from running altogether.

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This System Helps You Stay In Control

Being able to monitor and adjust your training based on how your body feels is a powerful skill for runners. This system gives you a starting point for making smart decisions that keep you progressing, not sidelined.

Pain is a signal, not a stop sign. But ignoring it or guessing your way through it can turn a small issue into a bigger one.

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You Don’t Have to Figure It Out Alone

If you have been dealing with yellow or red zone pain for more than a few weeks and you are not making progress, it is time to seek help.

Our team of Memphis-based running specialists can:

Accurately diagnose what is going on
Help you identify the root cause
Design a plan that supports your training goals
Walk you through a smart return to pain-free running

Whether you are training for a marathon or just want to enjoy your neighborhood runs again, we are here to help.

Book a 15-minute discovery call to talk with a specialist and see if you are a good fit for our program.
We will help you understand your pain and create a plan to keep you running strong.

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