Runner on an open road at sunrise, seen from the knees down

Knee Pain When Running

Knee pain when running usually builds with training: more miles, more hills, new shoes or a race block. Runners often feel it around or behind the kneecap, or along the outside of the knee. At ELATE in North Park, San Diego, Dr. Ashley Aguero, DC, looks at your training load and how your hips, knees and ankles share the work. Then she builds a plan to keep you running where possible.

Why it often happens

  • Mileage that rises faster than your body adapts, especially at the start of a race block

  • Downhill running and hills

  • Hip strength and control. How well the hip steadies the knee on each stride.

  • Ankle mobility and foot strike

  • Stride length. Overstriding puts more load through the knee.

  • Sleep, stress and recovery during a heavy block

Pain on the outside of the knee often gets blamed on the IT band. The IT band is fibrous tissue. We look at hip control, training load and running mechanics around it.

Dr. Ashley Aguero, DC, treating a runner's leg and knee at ELATE in North Park

What we look at

  • Your running history and current plan

  • Single-leg squat and step-down control

  • Hip strength and ankle mobility

  • Running video, if you have it

How we help

  • Hands-on care, including adjustments and Sports Myofascial Therapy

  • Strength work for the hips and thighs

  • Training changes: volume, hills, pace and stride

  • Clear steps back to full mileage, as in our return-to-sport pathway

We reinforce care with movement and training so the change carries into your runs.

What you can try this week

  • Cut weekly volume or intensity for a week

  • Swap downhill routes for flatter ones

  • Keep easy runs easy

  • Add two short strength sessions for the hips and thighs

Runners' legs and shoes mid-stride during a road race

When to get checked sooner

Get assessed promptly, or see a physician, if you have:

  • Swelling in the knee

  • A knee that locks or gives way

  • Pain after a fall or a twist

  • Pain at rest or at night

  • Trouble putting weight on the leg

Questions we get

Should I stop running?

Not always. Many runners keep running with changes to volume, pace or terrain while we work on it.

Is it runner's knee?

We don't put a label on it from the outside. We'll tell you what we find and refer you if a medical exam or imaging makes sense.

Do I need new shoes?

Sometimes, but shoes are rarely the whole story. We look at training and movement first.

Can I still race?

Often yes. It depends on the timeline and how your knee responds. We'll plan toward race day together.

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Further reading