How does an EZ bar curl compare to a straight bar curl?

The angled grip turns your palms slightly inward, which many lifters find easier on the wrists and elbows than the fully palms-up position of a straight bar. The straight bar keeps the biceps slightly more active, since the biceps also turns the palm upward, but in a study on competitive bodybuilders the gap was only a few percent, small enough that comfort is a sensible way to choose between this and the Barbell Curl.

Can I perform EZ bar curls with a narrow or wide grip?

Yes, most EZ bars have an inner and an outer set of angled grips, and both work the biceps well. The common claim that a narrow grip targets the outer head and a wide grip the inner head is not backed by consistent evidence, so choose the width that feels best on your wrists, elbows, and shoulders. Both setups have their own pages: EZ Bar Curl (Close Grip) and EZ Bar Curl (Wide Grip).

How often should I include EZ bar curls in my workout routine?

One to three times per week works for most lifters. Total weekly biceps volume matters more than the exact frequency, so count the sets from any other curls you do and allow at least a day of recovery between hard biceps sessions.

How much does an EZ bar weigh?

It depends on the bar. Olympic EZ bars with 2-inch sleeves usually weigh about 15 to 25 pounds (roughly 7 to 11 kg), while standard bars with 1-inch sleeves are often lighter, so check the label or weigh yours. Log the weight the same way every session, with or without the bar, so your progress stays comparable.

EZ Bar Curl

What Is the EZ Bar Curl?

EZ Bar Curl is an isolation exercise that primarily targets the biceps and also engages the brachialis and brachioradialis, the other main elbow flexors. It is a beginner-level movement and a variation of the classic barbell curl, but performed with an EZ bar. The key difference between the two is the grip positioning: the EZ bar has a curved design that allows for a more natural wrist position, reducing strain on the wrists and forearms while still effectively working the biceps.

This variation is particularly beneficial for those who experience discomfort with a straight barbell curl, as the slight inward angle of the grip reduces tension on the wrist joints. A study on trained men that compared the straight bar, EZ bar and alternating dumbbell curl found no meaningful difference in biceps or brachioradialis activity between the EZ bar and the straight bar, so the choice between the two mostly comes down to wrist and elbow comfort rather than muscle emphasis.

The angled grips let you hold the bar at more than one width, with the EZ Bar Curl (Close Grip) and EZ Bar Curl (Wide Grip) as the common alternatives. A narrow grip is often said to favor the long, outer head of the biceps and a wide grip the short, inner head, but the evidence for this is inconsistent and both heads work hard at any width, so choose the grip that feels most comfortable. This versatility makes the exercise an excellent choice for individuals looking to enhance their biceps training with minimal wrist discomfort.

Muscles Worked

MuscleActivation

Biceps Brachii: Primary
Brachialis: High
Brachioradialis: Medium
Deltoid: Low
Flexor Carpi Radialis: Low
Flexor Carpi Ulnaris: Low

Instructions

Stand with your feet shoulder-width apart, holding an EZ bar with an underhand grip on the angled portions of the bar, so your palms face up and slightly inward.
Let your arms hang fully extended in front of your thighs, with your elbows close to your torso and your back straight.
Engage your core and curl the bar upward by contracting your biceps, keeping your wrists in a neutral position.
Continue curling until your biceps are fully contracted and the bar is at about chest height, keeping your elbows at your sides.
Pause briefly at the top, then slowly lower the bar until your arms are fully extended again.
Repeat for the desired number of repetitions.

Common Mistakes

Using Momentum
Swinging the bar up using your back or shoulders reduces biceps activation, so keep the movement controlled and focus on using only your arms.
Not Controlling the Descent
Dropping the bar too quickly reduces the effectiveness of the exercise and increases injury risk, so lower the bar slowly to maintain tension on the biceps.
Gripping Too Narrow or Wide
An improper grip width can cause wrist discomfort and reduce efficiency, so use a grip that feels natural and aligns with the bar's angled design.
Incomplete Range of Motion
Not fully extending your arms at the bottom or stopping the curl short at the top limits muscle engagement, and the stretched bottom range is the part research links most closely to muscle growth.
Elbows Drifting Forward
Letting your elbows move forward as you curl brings the front of the shoulders into the lift and takes tension off the biceps, so keep your elbows at your sides.

Injuries

EZ Bar Curl is a low risk exercise when performed with proper technique. While the EZ bar reduces wrist strain compared to a straight bar, improper grip width or excessive weight can still cause discomfort. Using a comfortable grip and manageable weight can help prevent this. Overuse or improper form can lead to strain on the tendons in the elbow. The most serious of these injuries is a biceps tendon tear at the elbow, which typically occurs when a load that is too heavy forces the elbow straight while the biceps resist it, so lower the bar under control to full extension instead of letting it drop.

Leaning back excessively while curling can strain the lower back. Keep your core engaged and avoid using momentum to lift the bar.

If you cannot finish your reps without swinging, reduce the weight or use a supported variation such as the EZ Bar Seated Curl or Machine Bicep Curl. If the angled grips still bother your wrists, try the Dumbbell Hammer Curl, which uses a neutral grip. To progress, add weight in small steps of about 2 to 10 percent once you can complete one or two reps beyond your target with clean form.

Stop immediately if you feel a sudden pop at the front of the elbow, sharp pain, or sudden weakness when bending the elbow or turning the palm up, and see a doctor, especially if swelling, bruising, or a bulge in the upper arm follows, since these are signs of a biceps tendon tear. Wrist or elbow pain that lingers after your sets is a signal to lower the load or adjust your grip.

Overview

Primary Focus: Biceps
Equipment: Ez bar
Modality: Strength
Difficulty: Beginner

Alternative Exercises

Frequently Asked Questions

Q: How does an EZ bar curl compare to a straight bar curl?: The angled grip turns your palms slightly inward, which many lifters find easier on the wrists and elbows than the fully palms-up position of a straight bar. The straight bar keeps the biceps slightly more active, since the biceps also turns the palm upward, but in a study on competitive bodybuilders the gap was only a few percent, small enough that comfort is a sensible way to choose between this and the Barbell Curl.
Q: Can I perform EZ bar curls with a narrow or wide grip?: Yes, most EZ bars have an inner and an outer set of angled grips, and both work the biceps well. The common claim that a narrow grip targets the outer head and a wide grip the inner head is not backed by consistent evidence, so choose the width that feels best on your wrists, elbows, and shoulders. Both setups have their own pages: EZ Bar Curl (Close Grip) and EZ Bar Curl (Wide Grip).
Q: How often should I include EZ bar curls in my workout routine?: One to three times per week works for most lifters. Total weekly biceps volume matters more than the exact frequency, so count the sets from any other curls you do and allow at least a day of recovery between hard biceps sessions.
Q: How much does an EZ bar weigh?: It depends on the bar. Olympic EZ bars with 2-inch sleeves usually weigh about 15 to 25 pounds (roughly 7 to 11 kg), while standard bars with 1-inch sleeves are often lighter, so check the label or weigh yours. Log the weight the same way every session, with or without the bar, so your progress stays comparable.