Running Form Analyzer
Film 30 seconds side-on and get your cadence, overstride and trunk lean graded against published research.
I promised a running version of the bike fit analyzer. Here it is.
Same stack, pointed at your running gait:
How it works
Film yourself side-on for 30 seconds. It tracks every joint and grades your cadence, overstride and trunk lean against published running research. Then it draws a colored skeleton on the video: green = dialed, red = fix.
What it won't tell you
It won't tell you heel striking is bad. The research I dug into doesn't actually back that up. Instead, it measures where your foot lands relative to your body, which seems to be what matters most.
Coaches: I'm curious where you stand on this one.
Putting it to the test
I filmed myself running badly on purpose to see if it would catch me:
Hunched over: it flagged my trunk at 18 degrees.
Upright and leaning back: -4 degrees.
My normal easy run: all green. 171 cadence, foot landing 3 degrees ahead.
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