10 Best Cable Concentration Extension (On Knee) Alternatives for Home & Rehab

The Cable Concentration Extension (On Knee) is done kneeling with a cable machine. Ranked closest by our scoring: the Cable Standing One Arm Triceps Extension, the Kneeling Cable Triceps Extension and the Bodyweight Kneeling Triceps Extension. Three harder versions, the Cable One Arm Tricep Extension, the Standing Low-pulley One-arm Triceps Extension and the Cable Alternate Triceps Extension, are listed below as progressions rather than swaps.

Cable Concentration Extension (On Knee)Watch the Cable Concentration Extension (On Knee)

Each substitute is scored on movement pattern, muscles worked, equipment and body position. Read how we rank alternatives

How to Do the Cable Concentration Extension (On Knee)

The steps for the Cable Concentration Extension (On Knee) itself, so you can judge how close each substitute below really is.

Triceps, with forearms · Cable · Beginner · Isolation

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

The 10 Best Cable Concentration Extension (On Knee) Alternatives

10 substitutes, ranked by how closely each one matches the Cable Concentration Extension (On Knee) on movement pattern, muscles worked, equipment and body position. The higher the score, the less you change. Cards with a "How to perform it" link open to show the steps; every card title links to that exercise's own alternatives page. Harder versions are tagged as progressions and kept out of the top spot even when they score higher.

Each link re-ranks the list below for the kit it names. Pick one to hide the substitutes you cannot set up.

  1. Cable Standing One Arm Triceps ExtensionPlay demonstration

    1. Cable Standing One Arm Triceps Extension

    86% match

    Triceps · Beginner · Isolation

    Pick this when you want to work the triceps with less balance to manage.

    • Cable
    How to perform it
    1. Stand with your feet shoulder-width apart, facing the cable machine.
    2. Hold the cable handle with your right hand, palm facing down, and position your arm so that it is fully extended and parallel to the ground.
    3. Keep your elbow stationary and close to your body.
    4. Slowly bend your elbow, lowering the cable handle towards the back of your head.
    5. Pause for a moment at the bottom of the movement, then extend your arm back to the starting position.
    6. Repeat for the desired number of repetitions, then switch sides and perform the exercise with your left arm.

    Sets and reps: 3 sets of 10 to 15 reps on each side.

    Why this matches
    • Movement: extension, the same as the Cable Concentration Extension (On Knee)
    • Primary muscle: triceps, the same as the Cable Concentration Extension (On Knee)
    • Equipment: a cable, the same as the Cable Concentration Extension (On Knee)
    • Body position: standing, not kneeling
    • Balance: easier to stay steady on than the Cable Concentration Extension (On Knee)
  2. Cable One Arm Tricep Extension

    Progression

    2. Cable One Arm Tricep Extension

    90% match

    Triceps · Intermediate · Isolation

    Pick this when you want a harder version that still works the triceps.

    • Cable
    How to perform it
    1. With your right hand, grasp a single handle attached to the high-cable pulley using a supinated (underhand; palms facing up) grip. You should be standing directly in front of the weight stack.
    2. Now pull the handle down so that your upper arm and elbow are locked in to the side of your body. Your upper arm and forearm should form an acute angle (less than 90-degrees). You can keep the other arm by the waist and you can have one leg in front of you and the other one back for better balance. This will be your starting position.
    3. As you contract the triceps, move the single handle attachment down to your side until your arm is straight. Breathe out as you perform this movement. Tip: Only the forearms should move. Your upper arms should remain stationary at all times.
    4. Squeeze the triceps and hold for a second in this contracted position.
    5. Slowly return the handle to the starting position.
    6. Repeat for the recommended amount of repetitions and then perform the same movement with the other arm.

    Sets and reps: 3 sets of 10 to 15 reps on each side.

    Why this matches
    • Movement: extension, the same as the Cable Concentration Extension (On Knee)
    • Primary muscle: triceps, the same as the Cable Concentration Extension (On Knee)
    • Equipment: a cable, the same as the Cable Concentration Extension (On Knee)
    • Body position: standing, not kneeling
    • Balance: easier to stay steady on than the Cable Concentration Extension (On Knee)
  4. Kneeling Cable Triceps Extension

    4. Kneeling Cable Triceps Extension

    82% match

    Triceps · Beginner · Isolation

    Pick this when you want an easier version that still works the triceps.

    • Cable
    How to perform it
    1. Place a bench sideways in front of a high pulley machine.
    2. Hold a straight bar attachment above your head with your hands about 6 inches apart with your palms facing down.
    3. Face away from the machine and kneel.
    4. Place your head and the back of your upper arms on the bench. Your elbows should be bent with the forearms pointing towards the high pulley. This will be your starting position.
    5. While keeping your upper arms close to your head at all times with the elbows in, press the bar out in a semicircular motion until the elbows are locked and your arms are parallel to the floor. Contract the triceps hard and keep this position for a second. Exhale as you perform this movement.
    6. Slowly return to the starting position as you breathe in.
    7. Repeat for the recommended amount of repetitions.

    Sets and reps: 3 sets of 10 to 15 reps.

    Why this matches
    • Movement: extension, the same as the Cable Concentration Extension (On Knee)
    • Primary muscle: triceps, the same as the Cable Concentration Extension (On Knee)
    • Equipment: a cable, the same as the Cable Concentration Extension (On Knee)
    • Body position: kneeling, the same as the Cable Concentration Extension (On Knee)
    • Balance: easier to stay steady on than the Cable Concentration Extension (On Knee)
  5. Bodyweight Kneeling Triceps ExtensionPlay demonstration

    5. Bodyweight Kneeling Triceps Extension

    82% match

    Triceps · Beginner · Isolation

    Use this when you have nothing to train with, because it works the triceps with bodyweight alone.

    • Bodyweight
    How to perform it
    1. Kneel down on the ground with your knees hip-width apart.
    2. Place your hands on the ground in front of you, shoulder-width apart, fingers pointing forward.
    3. Extend your legs straight behind you, balancing on your toes and hands, forming a straight line from head to heels.
    4. Bend your elbows and lower your upper body towards the ground, keeping your elbows close to your sides.
    5. Pause for a moment at the bottom, then push through your hands to straighten your arms and return to the starting position.
    6. Repeat for the desired number of repetitions.

    Sets and reps: 3 sets of 8 to 12 reps, and add reps before you add load.

    Why this matches
    • Movement: extension, the same as the Cable Concentration Extension (On Knee)
    • Primary muscle: triceps, the same as the Cable Concentration Extension (On Knee)
    • Equipment: bodyweight only, not a cable
    • Body position: kneeling, the same as the Cable Concentration Extension (On Knee)

Why You Might Need a Cable Concentration Extension (On Knee) Alternative

You might swap this exercise because you lack a cable station, have knee discomfort from the kneeling position, or need a greater loading option for hypertrophy. Rehabilitation protocols and unilateral imbalances also drive substitutions. Choose movements that still isolate elbow extension, this preserves lateral and medial head recruitment, while adjusting shoulder position to reduce long-head strain. For example, an overhead dumbbell extension increases long-head length tension; a kickback emphasizes lateral-head peak contraction. Keep the elbow fixed and control the eccentric to protect joints and sustain triceps loading.

Cable Concentration Extension (On Knee) FAQ

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

It primarily targets the triceps brachii, lateral and medial heads for elbow extension and the long head when the shoulder is extended. Keep your elbow anchored and extend only at the elbow to isolate the triceps while the core and shoulder stabilizers resist rotation.

Can I build muscle without doing Cable Concentration Extension (on Knee)?

Yes. You can achieve hypertrophy with other isolation and compound movements that load elbow extension, such as skull crushers, dips, and weighted pushdowns. Focus on progressive overload, full elbow extension, and slow eccentrics to stimulate triceps growth.

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