How do I tell if my running form is bad?
The clearest sign of bad running form on video is a foot that lands well ahead of your hips with a straight knee, and if you also see a fold at the waist, a slow cadence or arms crossing your chest, it is worth fixing.
Why you cannot feel it
Most runners with poor form feel fine at easy pace. The stride you have run for years feels normal because it is yours. That is why "is my running form bad" is such a common search. You cannot answer it from the inside.
A side-view video answers it in about a minute. Film 10 to 20 seconds at your usual easy pace, then pause on the frame where your front foot touches down. Everything below is visible on that one frame or the few around it. See how to film yourself running for the setup.
The five things to look for
Foot lands ahead of the hips. Pause at foot strike. Draw a line straight down from your hip. If the ankle sits well ahead of that line and the knee is nearly straight, you are overstriding. This is the one fault that matters most, because a straight leg out in front acts as a brake on every step. Read what is overstriding for the full picture.
Bent at the waist. Look at the torso. A lean from the ankles is fine. A fold at the hips, with the chest down and the bum back, is not. It often shows up in the last third of a long run.
Head pushed forward. The ear should sit roughly over the shoulder. A head that sits well in front loads the neck and tends to pull the shoulders in.
Arms crossing the body. From the front, watch the hands. If they swing across the centre of your chest, the trunk has to twist to match. Arms should move forward and back with the elbow bent near a right angle.
Slow cadence. Count foot strikes for 30 seconds and double it. Below about 160 steps per minute at easy pace, combined with the reach above, usually means long slow steps. See what is a good running cadence.
Bad form versus different form
Not every odd-looking stride is a bad one. Some runners heel strike lightly under the hip and run for decades without trouble. Some carry their arms low. Some have a hitch that comes from an old injury and does no harm.
The question to ask is not "does it look textbook". It is "does the foot land out in front, and does the body fold". Those two are the ones most often linked with sore shins and knees. A video cannot tell you the cause of pain, but it can show you a pattern worth changing.
Land under your hips, run tall.
How to check it with Caden
- Tap Run a new analysis and set up a side-on shot. Film 10 to 20 seconds at easy pace with the phone at hip height.
- On the results screen, read the six dials. A red Where your foot lands dial or Upper body lean dial points to the two faults above.
- Tap Breakpoints and open Foot strike. The skeleton overlay shows where the ankle sits against the hip line.
- Read the coach's tip for the single cue on your lowest dial, then open the Exercises tab for a 4 or 8 week plan built from it.
FAQ
What does a bad gait look like from behind?
From behind, the main sign is one hip dropping on each step while the other leg is in the air. The shoulders may tilt to match. Caden does not analyse this view, so check it on your own footage.
Why is my running form so bad if I run a lot?
Mileage builds fitness, not technique. Without feedback, the stride you started with is the stride you keep. Ten minutes of drills after two runs a week changes it faster than more miles do.
Can bad running form cause injury?
Some patterns, mainly overstriding, are often linked with shin and knee complaints. A video shows the pattern, not the cause. If something hurts, see a physio and bring the clip.