Seated Single Arm Cable Concentration Curl
In SetGrip: Cable Concentration Curl (Seated, Single Arm)
- Secondary muscles
- Forearms
- Body part
- Upper Arms
- Position
- Seated
- Laterality
- Unilateral (one arm at a time)
- Category
- Strength
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Swapping the dumbbell for a low cable changes what the concentration curl feels like at the bottom: instead of the load fading as your arm hangs, the cable keeps pulling. Your elbow stays braced against your inner thigh, one arm at a time, so nothing but elbow flexion moves the handle.
How to do the Seated Single Arm Cable Concentration Curl
- Sit on a bench with your feet flat on the floor and your back straight.
- Hold a cable handle with one hand and place your elbow on the inside of your thigh, just above the knee.
- Keep your upper arm stationary and curl the cable handle towards your shoulder while exhaling.
- Pause for a moment at the top of the movement, squeezing your biceps.
- Slowly lower the cable handle back to the starting position while inhaling.
- Repeat for the desired number of repetitions, then switch arms.
Tip: Lower for three seconds and stop just short of locking out the elbow to keep the muscle under tension.
Muscles worked
Primary
Biceps · Arms
The biceps bend the elbow and turn the palm up, so they work hardest when the palms face up; hammer and reverse grips shift more of the work to the forearm muscles.
Secondary
- Forearms — The brachioradialis and forearm flexors take over on hammer and reverse curls and assist on every other variation.
Common mistakes
- Elbows drifting forward — as the elbows come up the front delt starts to lift the weight; pin the elbows to your sides and let only the forearm move.
- Swinging from the hips — a small rock backward on each rep means the weight is too heavy; drop it and curl from a dead stop.
- Cutting the bottom short — stopping with the elbow bent shortens the range where the biceps are stretched; lower until the arm is nearly straight.
- Wrists curling at the top — flexing the wrist toward you brings the forearm flexors in; keep the wrist neutral or slightly extended.
Where it fits in a workout
Curls go at the end of a pull session or arm day, after the rows and pulldowns that also load the biceps. Superset them with a triceps pushdown or extension.
How many sets, how heavy and how hard: see what the ACSM position stands support.
Variations and alternatives
Similar exercises
Without cable
When to talk to someone
- Chest discomfort, feeling faint or lightheaded, or trouble breathing during or after exercise can be signs of a heart attack. In the US, call 911 right away; elsewhere, call your local emergency number.
- Heart, metabolic or kidney disease, or symptoms like these when you are active: talk to your doctor before you start or step up training.
- Pregnant: ask your obstetric care provider which exercise suits you.
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More exercises
Sources
- ACSM position stand on exercise quantity and quality (Garber et al., 2011)
- ACSM preparticipation health screening (Riebe et al., 2015)
- ACOG Committee Opinion No. 804 on exercise in pregnancy (2020)
- CDC: About Heart Attack Symptoms, Risk, and Recovery (2024)
Sources checked on October 17, 2026. Full citations are in the exercise library.
Animation and exercise data: ExerciseDB, licensed to SetGrip. General information, not medical or coaching advice.