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How to do the Cable Concentration Extension (on Knee)

IntermediateCableTricepsStrength

Cable Concentration Extension (on Knee) is an intermediate single-joint isolation pushing exercise targeting the Triceps in the Upper Arms region. Performed using cable, it falls under the strength category. Secondary muscles engaged include Forearms.

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Cable Concentration Extension (on Knee) demonstration · © GymiaFit

Cable Concentration Extension (on Knee) at a glance

Primary muscles
Triceps
Secondary muscles
Forearms
Equipment
Cable
Level
Intermediate
Type
Isolation (single-joint)
Force
Push

Cable Concentration Extension (on Knee) step by step

  1. 1Sit on a bench or chair with your knees bent and feet flat on the ground.
  2. 2Hold the cable handle with your right hand and place your elbow on the inside of your right knee.
  3. 3Extend your arm fully, keeping your elbow stationary and close to your knee.
  4. 4Pause for a moment at the top, then slowly lower your arm back to the starting position.
  5. 5Repeat for the desired number of repetitions, then switch sides.

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Cable Concentration Extension (on Knee) — questions

What muscles does the Cable Concentration Extension (on Knee) work?

The Cable Concentration Extension (on Knee) primarily targets the Triceps. It also recruits the Forearms as secondary movers.

What equipment do I need for the Cable Concentration Extension (on Knee)?

You need cable. If your gym does not have it, the alternatives listed further down train the same muscles with different kit.

Is the Cable Concentration Extension (on Knee) suitable for beginners?

It is classed as intermediate. Build the movement pattern with an easier variation first, then add load once the technique holds under fatigue.

What can I do instead of the Cable Concentration Extension (on Knee)?

Cable Alternate Triceps Extension, Cable High Pulley Overhead Tricep Extension, Cable Incline Triceps Extension train the same muscles and make good substitutes when the equipment is taken or the movement does not suit you.

Log it, don't guess it.

The GymiaFit app has the Cable Concentration Extension (on Knee) demo, form cues and set logging built in — plus a muscle map that shows what you have actually trained this week. Free on iOS and Android.