Cable Straight Arm Pulldown (Sz Bar)

Body Part: Back

Muscle: Back

Equipment: Cable Machine

The Cable Straight Arm Pulldown (Sz Bar) is a standing cable exercise performed from a high pulley with a straight bar attachment. Unlike a lat pulldown, the elbows stay almost fully locked out for the entire set, so the lats do the work through shoulder extension rather than elbow flexion. In this version you hinge forward at the hips so your torso leans toward the machine, which lets the bar travel from overhead down to your thighs in a long, sweeping arc.

This movement is a favorite for lifters who want to feel their lats working without their biceps limiting the set. Because the arms stay straight, the biceps contribute very little, making it a useful accessory for people whose arms tend to take over on pulldowns and rows. It also teaches you what lat contraction actually feels like, which carries over to every other pulling exercise in your program.

The main muscles worked are the lats, with support from the teres major, the rear shoulders, and the triceps, which hold the elbow locked against the cable's tension. The mid-back and core work isometrically to keep your torso stable in the hinge position while the weight pulls you upward and forward.

Setup matters more here than in most cable exercises. Your distance from the machine, your hip hinge angle, and a slight forward lean all determine whether the lats get loaded or whether the cable just drags your shoulders forward. Stand far enough back that the bar starts above and slightly in front of your head with tension already on the cable, then push your hips back until your torso is angled well forward and your knees are softly bent.

To execute it well, grip the bar with an overhand grip roughly shoulder-width apart, brace your trunk, and pull the bar down toward your thighs in a smooth arc while keeping your arms long. Think about driving your elbows down and slightly back rather than pulling with your hands. Pause briefly with the bar at your thighs, then let it rise back with control until your arms are overhead again.

This exercise fits well as a warm-up primer before heavy pulls, a finishing movement for higher-rep lat work, or a standalone option on days when you want back volume without loading the elbows. Common mistakes include bending the elbows as fatigue sets in, swinging the torso to move the weight, and turning the pull into a triceps pushdown by driving the hands instead of the elbows. Keep the load moderate and let the long lever arm of a straight arm do the work.

Instructions

• Set the pulley of a cable machine to the high position and attach a straight bar.
• Take an overhand grip on the bar about shoulder-width apart, then step back a foot or two so the cable already has tension with your arms extended overhead.
• Push your hips back and hinge forward until your torso is angled well down toward the floor, knees softly bent, feet about hip-width apart.
• Brace your core and pull your shoulder blades down slightly so your shoulders are not shrugged up to your ears.
• Keeping your elbows nearly locked, pull the bar down in a wide arc toward the front of your thighs.
• At the bottom, squeeze your lats and hold the bar against your legs for a beat without letting your shoulders roll forward.
• Slowly let the bar travel back up along the same arc until your arms are extended overhead and you feel a stretch through the lats.
• Exhale as you pull the bar down and inhale as you return it to the starting position.
• Complete your reps without letting the weight stack slam down, and reset your stance and hinge before the next set.

Tips & Tricks

• If your elbows bend as you fatigue, drop the weight — bent elbows turn this into a lat pulldown and the biceps take over.
• Do not push the bar down with your triceps; think about pulling your elbows toward your hips while your arms stay long.
• Aim the bar at your thighs, not your chest — pulling to chest height recruits more rear shoulders and shortens the lat range.
• Keep the hinge consistent; if your torso rises and falls with each rep, you are using momentum from your lower back instead of your lats.
• Stand far enough back that the cable pulls your arms slightly forward at the top — if the cable is vertical above your head, the top position loses tension.
• Use a moderate weight and a 2–3 second return; the stretch phase at the top is where a lot of the benefit is.
• If your shoulders pinch at the top, stop a little short of full overhead extension or use a slightly narrower grip.
• Your wrists should stay neutral and straight — cocked wrists under tension strain the forearms and shift focus away from the lats.

Frequently Asked Questions

Which muscles does the Cable Straight Arm Pulldown (Sz Bar) work?

The lats are the prime mover, supported by the teres major and rear shoulders. The triceps work statically to keep the elbows locked, and the core stabilizes your hinged torso.

Why do the arms have to stay straight during the Cable Straight Arm Pulldown (Sz Bar)?

With straight arms, the biceps cannot assist, so the lats have to extend the shoulders themselves. Bending the elbows simply turns the exercise into a lat pulldown with less lat isolation.

Should I stand upright or hinge over for this exercise?

The bent-over position shown here lets the bar travel from overhead down to your thighs in a long arc, which stretches the lats at the top. A fully upright version shortens that range and reduces the stretch.

How far should I stand from the cable machine?

Step back until the cable angles slightly downward in front of you at the start, with tension already on your lats before the first pull. Too close and the bar drifts back toward your head; too far and the cable drags you forward.

Is the Cable Straight Arm Pulldown (Sz Bar) good for beginners?

Yes, it is beginner-friendly because the cable path is stable and the load is easy to scale. Start light and prioritize feeling the lats over moving heavy weight.

How is this different from a triceps pushdown?

A pushdown is driven by straightening the elbows, while the straight arm pulldown keeps the elbows already locked and moves at the shoulder. If you feel your triceps burning, you are pushing the bar instead of pulling your elbows down.

What can I use if my gym has no straight bar attachment?

A rope attachment, an EZ bar, or single stirrup handles all work with the same technique. The rope allows a slight outward hand path, which some lifters find more comfortable on the shoulders.

Where should the bar finish at the bottom of each rep?

Bring it to the front of your thighs with a brief lat squeeze. Stopping at chest or hip height cuts the range short and reduces lat involvement.

Is this exercise safe for the lower back?

It places a modest demand on the lower back because you hold a hinge position, so keep the weight moderate and the hinge steady. If your lower back fatigues before your lats, reduce the load or brace more firmly.

Should I use this before or after heavy rows and pulldowns?

Either works: light sets before heavy pulls prime the lats and rehearse the mind-muscle connection, while higher-rep sets after rows serve as a solid finishing movement.