Exercise guide
Lever Seated Triceps Extension Plate Loaded
- Beginner
- Isolation
- Rep-based
- Chest
- Upper arms
This isolation exercise targets all three heads of the triceps, utilizing a plate-loaded leverage machine to provide a stable, fixed path of motion for maximum muscle recruitment. It is particularly effective for safely loading the triceps in a stretched position to promote hypertrophy.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Load the desired weight plates onto the machine's loading horns.
- Sit firmly on the seat with your back pressed against the backrest and feet flat on the floor.
- Reach back and grasp the handles with a neutral grip (palms facing each other) or overhand grip as per machine design.
- Position your elbows forward, tucked close to your head, with your forearms fully flexed.
How to do it
- Exhale as you extend your arms by pushing the handles upward and forward until your elbows are fully locked out.
- Squeeze your triceps forcefully at the peak of the contraction for one second.
- Inhale as you slowly lower the weight back to the starting position, feeling a deep stretch in the triceps.
- Maintain a controlled tempo, taking approximately 2 seconds for the lowering phase and 1 second for the extension.
Form checklist
- Keep your elbows tucked in and pointing forward; do not let them flare out.
- Ensure the movement occurs only at the elbow joint; keep your shoulders and torso stationary.
- Keep your lower back pressed against the backrest to prevent arching.
- Avoid using momentum or 'bouncing' the weight at the bottom of the rep.
Pro tips
- Focus on the mind-muscle connection by imagining you are trying to straighten your arms against a heavy resistance rather than just moving the handles.
- Emphasize the eccentric phase; the stretch at the bottom is where the most muscle damage and growth stimulus occurs for the long head of the triceps.
Make it harder
- Add a 3-second slow eccentric phase to increase time under tension.
- Perform 'constant tension' reps by stopping just short of full lockout and just before the weight stack touches at the bottom.
Frequently asked
- What muscles does the lever seated triceps extension plate loaded work?
- The lever seated triceps extension plate loaded primarily targets the triceps, and also works the abs and forearms as secondary muscles.
- What equipment do you need for the lever seated triceps extension plate loaded?
- The lever seated triceps extension plate loaded uses leverage machine.
- Is the lever seated triceps extension plate loaded good for beginners?
- Yes. The lever seated triceps extension plate loaded is a beginner-friendly movement and a strong foundation to build on.