← All exercisesupper body
Dumbbell Bicep Curl
Elbow-flexion isolation for the biceps — strict, no swinging.
dumbbellbeginnerFilm: side
AI form check · side view
Muscles worked
Biceps
Forearms
Front deltoids
Abdominals
PrimarySecondaryStabilizer
Recording tips
- Film from the side so the camera sees your elbow angle and any swinging.
- Keep your torso and both arms in frame.
- Stand a step back so your full upper body is visible.
- Keep it under ~30 seconds.
Better lighting and a full body in frame give the AI a more accurate score.
Faults the AI detects
Swinging / using momentumWatch
You're swinging your torso to lift — keep your body still and let your biceps do the work.
Not fully extendingMinor
Lower all the way down — a full stretch at the bottom builds more strength.