Lever Neck Extension
The Lever Neck Extension primarily works the Sternocleidomastoid, with secondary activation of the Erector Spinae, Levator Scapulae, Trapezius (Upper) and stabilizer support from the Anterior Deltoid, Brachialis, Pectoralis Major (Clavicular), Pectoralis Major (Sternal), Pectoralis Minor, Serratus Anterior, Triceps (Long Head). It is a machine isolation exercise at beginner difficulty.
The Lever Neck Extension is an beginner isolation exercise performed with machine, following a isolation movement pattern. It primarily targets the Sternocleidomastoid, with secondary engagement of the Erector Spinae, Levator Scapulae, Trapezius (Upper). This is a bilateral pulling movement, engaging both sides of the body simultaneously.
A machine isolation pull exercise targeting the Sternocleidomastoid.
| Equipment | Machine |
|---|---|
| Difficulty | Beginner |
| Type | Isolation |
| Movement | Isolation |
| Force | Pull |
| Laterality | Bilateral |
| Primary | Sternocleidomastoid |
| Secondary | Erector Spinae, Levator Scapulae, Trapezius (Upper) |
Muscles Worked
The Sternocleidomastoid is the primary mover, taking on the bulk of the workload throughout the full range of motion. The Erector Spinae, Levator Scapulae, and Trapezius (Upper) act as secondary movers, assisting the primary muscles and contributing meaningfully to the overall output. The Anterior Deltoid, Brachialis, Pectoralis Major (Clavicular), and 4 other muscles act as stabilizers, maintaining joint position and postural alignment throughout the movement.
Primary Muscles
- Primary Muscle Sternocleidomastoid (neck)
Secondary Muscles
- Secondary Muscle Erector Spinae (back)
- Secondary Muscle Levator Scapulae (neck)
- Secondary Muscle Trapezius (Upper) (back)
Stabilizer Muscles
- Stabilizer Muscle Anterior Deltoid (shoulders)
- Stabilizer Muscle Brachialis (biceps)
- Stabilizer Muscle Pectoralis Major (Clavicular) (chest)
- Stabilizer Muscle Pectoralis Major (Sternal) (chest)
- Stabilizer Muscle Pectoralis Minor (chest)
- Stabilizer Muscle Serratus Anterior (chest)
- Stabilizer Muscle Triceps (Long Head) (triceps)
How to Perform
Preparation
- Sit on seat in machine.
- Place back of head under padded lever.
- Position body so neck is in line with lever axis.
- Grasp handles for support.
Execution
- Move head back by hyperextending neck.
- Return by bending neck forward until chin touches upper chest.
- Repeat.
Tips & Common Mistakes
- Use a full range of motion — partial reps reduce stimulus on the target muscle.
- Slow down the eccentric (lowering) phase for greater time under tension.
- If you need to swing or cheat, the weight is too heavy — reduce and focus on form.
Programming Suggestions
Adapt your sets and reps to your training goal. As a beginner-friendly exercise, start with lighter loads and focus on form before progressing weight.
| Strength | 3–4 sets × 6–8 reps at 75–85% 1RM with 90–120 seconds rest. |
|---|---|
| Hypertrophy | 3–4 sets × 10–15 reps at 60–75% 1RM with 60–90 seconds rest. |
| Endurance | 2–3 sets × 15–25 reps at 40–60% 1RM with 30–45 seconds rest. |
Alternative Exercises
These exercises target the same primary muscles (Sternocleidomastoid) and can be substituted based on your equipment or variation preferences.
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