EZ Barbell Spider Curl

Body Part: Upper Arms

Muscle: Biceps

Equipment: EZ Barbell

EZ Barbell Spider Curl is a chest-supported curling exercise performed face down on an incline bench with an EZ barbell. The bench angle and prone position remove most of the shoulder swing that often turns curls into a whole-body lift, so the biceps have to do the work through a stricter line of pull.

The setup places your upper arms hanging toward the floor while your chest stays pressed into the pad. That position makes the curl start from a stretched elbow angle and keeps the bar path short and direct toward the front of your shoulders. The EZ grip usually feels friendlier on the wrists than a straight bar, especially when you hold the bar with a narrower shoulder-width hand position.

This exercise primarily trains the biceps, with brachialis and brachioradialis adding elbow flexion strength and forearm support. Because the torso is supported, it is useful when you want a clean arm-focused set without cheating through hip drive, back extension, or aggressive leaning. It fits well as an accessory movement after heavier pulling work or as a direct arm builder in a hypertrophy session.

Quality matters more than load here. Each rep should begin with the elbows hanging just below the shoulders, then the bar should curl in a smooth arc until the forearms are nearly vertical and the biceps are fully shortened. On the way down, keep the elbows pointed mostly toward the floor and let the bar lower under control until the arms are long again.

The main mistakes are letting the chest leave the bench, drifting the elbows forward, shortening the bottom range, and turning the wrists aggressively at the top. Keep the neck relaxed, keep the upper arms quiet, and choose a weight that lets you maintain the same bench contact and bar path from the first rep to the last.

Instructions

• Set an incline bench to a moderate angle and lie chest-down with your upper chest supported near the top edge of the pad.
• Plant your feet firmly on the floor behind you and let your arms hang straight down with an EZ barbell held in a shoulder-width grip.
• Keep your chest glued to the bench, neck long, and shoulders set down instead of shrugged toward your ears.
• Start with the elbows pointing down and slightly behind the bar so the upper arms stay still at the bottom.
• Exhale and curl the bar in a smooth arc toward the front of your shoulders without swinging your torso.
• Squeeze the biceps briefly at the top when the forearms are close to vertical and the wrists stay in line with the forearms.
• Lower the bar slowly until the elbows are extended and the arms are hanging long again.
• Reset the shoulders against the bench before the next repetition and keep the same path for every rep.

Tips & Tricks

• Use a lighter load than your standing curl because the strict chest-supported position removes most body English.
• Keep your upper arms hanging mostly vertical; if the elbows drift forward, the front delts start helping too much.
• Let the EZ bar sit in the angled grips that feel best on your wrists instead of forcing a straight-bar hand position.
• Pause for a split second at the top to make sure the curl finishes with elbow flexion, not shoulder lift.
• Lower the bar on a slow count so the stretched bottom position stays under tension instead of dropping quickly.
• Keep your chest in contact with the bench throughout the set; losing contact usually means the load is too heavy.
• Think about drawing the bar toward your forehead-to-chin line rather than toward your stomach.
• Stop one or two reps before form changes if your shoulders start rolling forward or the wrists collapse back.

Frequently Asked Questions

What muscle does EZ Barbell Spider Curl target most?

The biceps are the main target, with brachialis and brachioradialis assisting the curl.

Can beginners perform this exercise?

Yes. It is beginner-friendly if you keep the chest on the bench and use a light enough load to avoid swinging.

Why use an EZ bar instead of a straight bar?

The angled grips usually reduce wrist strain and let many lifters curl with a more comfortable hand position.

Where should my elbows be during the rep?

They should stay pointed mostly down toward the floor and not drift far forward as you curl.

How high should I curl the bar?

Curl until the forearms are close to vertical and the biceps are fully shortened, usually near the front of the shoulders.

Should my chest leave the bench at the top?

No. Keep the chest pressed into the pad so the exercise stays strict and does not turn into a swing.

What range of motion works best?

Use the full pain-free range from straight arms at the bottom to a hard squeeze at the top.

How do I know the weight is too heavy?

If your elbows slide forward, your chest comes off the bench, or you lose the slow lowering phase, the load is too high.