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  7. Lever Neck Left Side Flexion Plate Loaded

Exercise guide

Lever Neck Left Side Flexion Plate Loaded

  • Intermediate
  • Isolation
  • Rep-based
  • Back
  • Shoulders
  • Waist

This exercise isolates the lateral flexors of the neck on the left side, primarily targeting the sternocleidomastoid and upper trapezius for improved neck thickness and cervical stability. Using a leverage machine provides constant tension that is safer and more consistent than traditional manual resistance.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Lever Neck Left Side Flexion Plate Loaded demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Trapezius

Secondary

  • Erector spinae
  • Obliques

Equipment

  • Leverage machine
  • Weight plate

Setup

  1. Load the desired weight onto the machine and adjust the seat height so the side head pad aligns with the left side of your head, just above the ear.
  2. Sit upright with your back firmly against the backrest and feet flat on the floor for stability.
  3. Grip the machine's handles or the seat edges to anchor your torso and prevent your shoulders from shifting.
  4. Position your head in a neutral, upright starting position with the left side of your head lightly touching the pad.

How to do it

  1. Exhale as you slowly flex your neck to the left, moving your left ear toward your left shoulder while keeping your torso stationary.
  2. Contract the muscles on the left side of your neck at the end of the range of motion, ensuring your left shoulder stays depressed.
  3. Inhale as you slowly return your head to the neutral starting position using a controlled 2-3 second tempo.
  4. Avoid overstretching past the neutral point to maintain tension and protect the cervical spine.

Form checklist

  • Keep your shoulders pinned down; do not shrug the left shoulder up to meet your ear.
  • Maintain a forward gaze throughout the movement to avoid rotating the neck.
  • Ensure the movement is strictly lateral (side-to-side) with no forward chin poking.
  • Keep your jaw relaxed to prevent tension headaches or TMJ strain.

Pro tips

  • Focus on the mind-muscle connection by imagining you are trying to 'crunch' the left side of your neck.
  • Use a very light weight initially to master the range of motion, as the neck muscles are sensitive to sudden loads.
  • Maintain a slight 'double chin' tuck to keep the cervical spine in a neutral, strong alignment during the flexion.

Make it harder

  • Implement a 2-second isometric hold at the point of peak contraction.
  • Increase the eccentric phase to 4-5 seconds to maximize time under tension for the lateral flexors.

Frequently asked

What muscles does the lever neck left side flexion plate loaded work?
The lever neck left side flexion plate loaded primarily targets the trapezius, and also works the erector spinae and obliques as secondary muscles.
What equipment do you need for the lever neck left side flexion plate loaded?
The lever neck left side flexion plate loaded uses leverage machine and weight plate.
Is the lever neck left side flexion plate loaded good for beginners?
The lever neck left side flexion plate loaded is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Alternating Dead HangAdvanced · lats and trapezius
  • Around The World Superman HoldIntermediate · erector spinae, glutes, hamstrings, lats, and trapezius
  • Back LeverAdvanced · erector spinae, glutes, hamstrings, lats, pectorals, and trapezius
  • Band Assisted Pull-UpBeginner · lats and trapezius

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