Concentration curl: how to do it
Main muscles: Biceps. Helpers: Brachialis. Below: step-by-step form, common mistakes, a muscle map, reps and rest, and what to swap it for.
Equipment
Dumbbells
Reps
10–15
Rest
75 s
Muscle group
Arms
How to do it
- Seated, the elbow against the inner thigh, torso leaning forward.
- Curl the dumbbell to the shoulder and squeeze the biceps at the top.
- Lower slowly to full extension.
Common mistakes
Helping with the leg and the torso, cutting the range short.
Muscles worked
primary·secondary
- Primary
- Biceps
- Secondary
- Brachialis
A secondary muscle gets roughly half the stimulus of a set — that is also how the log’s stats count it.
Alternatives: similar exercises
Log your sets — the app suggests the next weight
GymAssist tracks the load on each of 40 muscles, paints it on a body map and uses double progression to tell you when to add weight.
Free forever for the first 500