TETSUCable Concentration Extension (On Knee) vs Elbow Dips
The Cable Concentration Extension (On Knee) and the Elbow Dips both train the triceps as their primary muscle. The Cable Concentration Extension (On Knee) uses a cable while the Elbow Dips are bodyweight-based (a bar, rings or a station). Here is how they compare and when to pick each.
Side-by-side comparison
| Cable Concentration Extension (On Knee) | Elbow Dips | |
|---|---|---|
| Primary muscle | triceps | triceps |
| Body part | upper arms | upper arms |
| Supporting muscles | forearms | chest and shoulders |
| Equipment | cable | bodyweight |
| Steps in our guide | 5 | 5 |
How each one starts
Cable Concentration Extension (On Knee) — first steps
- Sit on a bench or chair with your knees bent and feet flat on the ground.
- Hold the cable handle with your right hand and place your elbow on the inside of your right knee.
Elbow Dips — first steps
- Sit on the edge of a bench or chair with your hands gripping the edge next to your hips.
- Slide your hips forward off the bench and straighten your legs, keeping your heels on the ground.
Full step-by-step guides are linked below.
Which should you choose?
The Cable Concentration Extension (On Knee) keeps constant tension on the muscle through the whole range of motion. The Elbow Dips need only a sturdy bar, rings or a station and scale through leverage, tempo and reps. If your gym has both options, neither is a wrong choice: pick the one that feels strongest through a full range, and swap after 6 to 8 weeks to keep the triceps adapting.
Full form guides
Common questions
Is the Cable Concentration Extension (On Knee) better than the Elbow Dips?
Neither is universally better — both train the triceps as the primary mover. The Cable Concentration Extension (On Knee) keeps constant tension on the muscle through the whole range of motion, while the Elbow Dips need only a sturdy bar, rings or a station and scale through leverage, tempo and reps. Choose based on your equipment and which movement you can progress consistently.
Can I do both the Cable Concentration Extension (On Knee) and the Elbow Dips in the same program?
Yes, but usually not in the same session — they overlap heavily on the triceps. A common setup is one as your main movement and the other on a second training day, or alternating them block by block.
Do the Cable Concentration Extension (On Knee) and the Elbow Dips work the same muscles?
The primary muscle is the same: the triceps. Supporting muscles differ slightly — forearms for the Cable Concentration Extension (On Knee) versus chest and shoulders for the Elbow Dips.
Track it in Tetsu
Tetsu tracks both movements separately, keeps your PRs per exercise, and tells you which one is actually progressing. Free to start.