Arms
Neck extension
A precise isolation movement designed to build peak height and thickness in the biceps using an ergonomic cambered bar.
How to perform.
Follow the sequence — setup is half the lift.
Stand upright with your feet shoulder-width apart and grasp the SZ-Bar on the outer serrated grips with an underhand palm-up grip.
Pin your elbows to your ribcage and keep your shoulders retracted to ensure the tension remains on the arms.
Exhale and curl the bar upward toward your chest by contracting your biceps while keeping your upper arms perfectly stationary.
Squeeze your biceps at the top of the movement for one second to maximize muscle fiber recruitment.
Inhale and slowly lower the bar back to the starting position until your arms are fully extended.
Maintain a slight bend in the knees and a neutral spine throughout the entire set to prevent lower back strain.
Common mistakes.
Fix these first — they cost reps, kilos, and joints.
- Swinging the torso to create momentum during the upward phase.
- Allowing the elbows to drift forward or away from the body.
- Using a partial range of motion by not fully extending the arms at the bottom.
- Gripping the bar too tightly which can lead to excessive forearm fatigue.
Muscles worked.
The primary movers do the work; the stabilizers keep the path honest.