Upper Arms Exercise · Cable

Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster) form demonstration - targeted for Triceps Upper Arms workouts

Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster)

Also known as: Cable Reverse Grip Tricep Pushdown (Sz-bar) (With Arm Blaster)

Category
Upper Arms
Equipment
Cable
Target
Triceps

Form and technique verified by certified strength coaches; see our editorial standards.

The Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster) is a focused upper arms exercise designed to train your Triceps.

Single-joint elbow extension isolating the triceps brachii (lateral, medial, and long heads). Keep upper arm fixed to prevent shoulder momentum. Doing this with controlled form helps you build muscle safely while protecting your joints.

Quick Exercise Facts

Movement Type Targeted (Isolation)
Equipment Cable
Main Muscle Triceps
Supporting Muscles Forearms

Target Muscle Activation

Triceps — Main Target
Forearms — Supporting
Stabilizers — Balance & Core

Using an SZ-bar with a reverse grip changes the pushdown's wrist angle to something more forearm-friendly than a straight bar, while an arm blaster locks the elbows against a pad to stop them from drifting forward. Together they make this one of the strictest triceps pushdown setups available, removing almost every way to cheat the rep with shoulder or body movement. It's a specialized variation worth using once elbow drift has become a bad habit on regular pushdowns.

How to Do the Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster)

  1. Attach a straight bar to the cable machine at the highest setting.
  2. Stand facing the cable machine with your feet shoulder-width apart.
  3. Grip the bar with an underhand grip, palms facing up, hands shoulder-width apart.
  4. Keep your elbows close to your sides and your upper arms stationary throughout the exercise.
  5. Engage your triceps and slowly push the bar down until your arms are fully extended.
  6. Pause briefly at the bottom, then slowly return the bar to the starting position.
  7. Perform for your targeted rep count, focusing on a deliberate tempo and maximum tension in the triceps.

Recommended Sets & Reps by Goal

Build Muscle & Size 3 – 4 Sets × 10 – 15 Reps

Moderate weight · 60s rest

Tone & Shape 3 Sets × 15 – 25 Reps

Lighter weight · 30–45s rest

Form & Control 2 – 3 Sets × 12 – 15 Reps

Lower slowly for 3 seconds · 60s rest

Technique & Form Tips

Single-joint elbow extension isolating the triceps brachii (lateral, medial, and long heads). Keep upper arm fixed to prevent shoulder momentum.

Common Mistakes to Avoid

  • Flaring Elbows Outward: Allowing elbows to wing outward during pushdowns or extensions shifts tension to the chest and shoulders while stressing elbow ligaments.
  • Moving the Upper Arms: Swinging the humerus back and forth turns the movement into a lat pullover rather than isolated elbow extension.
  • Incomplete Lockout Extension: Stopping short of full arm extension prevents full recruitment of the triceps medial and lateral heads.

How to Breathe During This Exercise

Inhale as elbow flexes to full stretch; exhale as forearm extends straight.

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Comfort & Joint Safety Tips

Individuals with triceps tendon irritation at the elbow should avoid excessive deep elbow flexion (>90°) on skull crushers and prefer cable pressdowns. If joint irritation persists, immediately stop and substitute this movement with another exercise from the Upper Arms exercises category.

Muscles Worked

The Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster) mainly targets your Triceps, with your Forearms helping support the movement.

More Upper Arms Exercises

More Triceps Exercises

Equipment Alternatives

Don't have cable? These target the same triceps with different equipment.

FAQ

What muscles does the Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster) work?
The Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster) mainly works your triceps. Your forearms also works to help support and steady your body. Using good, smooth form makes sure you work the right muscles and avoid unnecessary strain on your joints.
What equipment do I need for the Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster)?
You do the Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster) with a cable. Make sure your equipment is set up safely before starting. If you work out at home or have limited gear, check out our alternative exercises below.
What is the most common form mistake on the Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster)?
The most common mistake is flaring elbows outward: Allowing elbows to wing outward during pushdowns or extensions shifts tension to the chest and shoulders while stressing elbow ligaments.. Lowering the weight slowly (about 2 to 3 seconds) builds more muscle and keeps your joints safe.
How many sets and reps should I perform on the Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster)?
To tone and grow muscle, do 3 to 4 sets of 10 to 15 smooth reps with 60 seconds of rest, focusing on a full stretch and squeezing the muscle at the top of each rep.
What's a good alternative to the Cable Reverse Grip Triceps Pushdown (sz-Bar) (with Arm Blaster)?
If you don't have access to a cable, the Bench Dip (knees Bent) targets the same triceps using body weight instead. This alternative replicates the same joint angle and movement plane while allowing you to train effectively with different available gear. You can also substitute it seamlessly in our free Workout Plan Builder.
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