Guides
Train smarter, lift safer
Plain-language form guides and training breakdowns — the same things FormLens checks on every rep.
How to Fix Knees Caving In on Squats (Knee Valgus)
Knees collapsing inward when you squat? Here's why knee valgus happens, why it matters, and the exact cues and drills that fix it.
5 min readSquat Depth Explained: How Low Should You Actually Go?
Parallel, below parallel, or all the way down? Here's what squat depth really means, what limits it, and how to find the right depth for you.
5 min readDeadlift Form: How to Set Up and Stop Rounding Your Lower Back
Lower-back rounding is the deadlift's most common — and riskiest — fault. Here's how to set up, brace, and pull with a neutral spine.
6 min readBench Press Form: Bar Path, Arch, and the Mistakes That Stall You
Flared elbows, bouncing the bar, an uneven press — here's how to set up a stable bench, find your bar path, and press more safely.
6 min readOverhead Press Form: Stop Arching Your Back and Pressing Around Your Head
The overhead press punishes a loose midline. Here's how to brace, move your head out of the way, and lock out safely overhead.
5 min readRunning Cadence Explained: What It Is and How to Improve It
Cadence is one of the simplest levers for smoother, lower-impact running. Here's what it means and how to raise it without burning out.
5 min readHow to Film Your Lifts for AI Form Analysis
Camera angle, distance, lighting and framing — how to record a set so AI form analysis is actually accurate.
4 min readWhat Your Form Score Means: Reading the 0–100
How FormLens turns your reps into a 0–100 form score, what counts as a good score, and how to actually raise it.
4 min readButt Wink in the Squat: What It Is and How to Fix It
That little pelvic tuck at the bottom of your squat — what causes butt wink, when it matters, and how to fix it.
5 min read