There may be no better place to run in October than Princeton. The leaves turn along the D&R Canal towpath, the air cools off around Lake Carnegie, and the loops around town fill up with runners of every pace. Cross country season is in full swing, and plenty of adults are building mileage for a fall race or just trying to get outside before winter.
It’s also the time of year we start hearing the same sentence in the clinic: “It was just a little sore, so I kept running.”
A little soreness is part of training. Pain that changes how you run, or that is still there the next morning, is your body asking for a different plan. Here’s how to tell the difference, and what to do about it.
Why running injuries spike in the fall
Most running injuries are not caused by one bad step. They come from load that outpaces your body’s ability to adapt. In the fall, a few things tend to stack up at once:
- A summer-to-fall mileage jump. Many people ramp up quickly once the heat breaks.
- New surfaces. Moving between roads, packed trails, and the uneven, root-lined towpath changes how your foot and ankle absorb force.
- Worn shoes. That pair that carried you through the summer may be well past its best.
- Less recovery. School, work, and busy schedules shrink sleep and rest days.
Three common culprits
Shin splints (medial tibial stress syndrome)
Shin splints show up as an aching or sore line along the inner edge of the shin. It often hurts at the start of a run, eases as you warm up, then returns afterward. It’s usually tied to a sudden jump in volume or intensity, and to how well the calves, hips, and foot control the load of each step.
Runner’s knee (patellofemoral pain)
Runner’s knee is a dull ache around or behind the kneecap. It tends to flare on downhills, on stairs, and after sitting for a long time. Weak hip and thigh muscles, and a stride that lets the knee drift inward, are frequent contributors.
Plantar fasciitis and heel pain
The classic sign is sharp heel or arch pain with your first steps in the morning, or after sitting for a while. It often improves as you move, which is why people run through it until it won’t let them.
When to see a physical therapist
You don’t need to wait for an injury to “get bad enough.” Consider a visit if:
- Pain has lasted more than a week or two
- It’s changing your stride or forcing you to cut runs short
- It’s worse the morning after, not better
- It keeps coming back every season
Stop running and get evaluated promptly if you have sudden sharp pain, significant swelling, pain that wakes you at night, trouble putting weight on the leg, or pain in one spot on the bone that is tender to press. These can signal something that needs a closer look, such as a stress injury.
What physical therapy actually looks like for runners
The goal isn’t to take you off the trails. It’s to find out why the injury happened and fix the cause, so it doesn’t return. At Progression Physical Therapy, every visit is one-on-one with a Doctor of Physical Therapy. A typical plan includes:
- A full movement assessment. We look at strength, mobility, balance, and how you load each leg, and often at how you run.
- Targeted strengthening. Hips, calves, and feet do a lot of the work in every stride.
- A smart return-to-running plan. Instead of “rest until it stops hurting,” you get a graded progression of run and walk intervals, mileage, and surfaces.
- Options when heavy loading isn’t comfortable. For some injuries, we can use blood flow restriction training to build strength at very low loads while the area calms down.
A few things you can do this week
- Cap your weekly increases. If you’re ramping up, build gradually rather than all at once.
- Mix your surfaces on purpose. Don’t pile on a new surface and a new distance in the same week.
- Check your shoes. If you can’t remember when you bought them, it may be time.
- Keep one or two strength days. Calf raises, single-leg work, and hip strengthening pay off for runners.
- Don’t skip rest days. Adaptation happens during recovery, not on the run.
No prescription needed
You can see a physical therapist without a referral from your doctor, and most major health insurances are accepted. Earlier care usually means fewer missed runs.
Progression Physical Therapy of Princeton 601 Ewing Street, Suite B9, Princeton, NJ 08540 Monday to Friday 8:00am to 7:00pm · Saturday 9:00am to 1:00pm (609) 454-3536
This article is for general education and isn’t a substitute for an evaluation by a licensed healthcare provider.
