Ez Bar Preacher Curl
The EZ Bar Preacher Curl isolates the biceps by fixing the arms on a preacher bench and curling the bar through a controlled range.
Ez Bar Preacher Curl
The EZ Bar Preacher Curl is a strict biceps exercise performed with the upper arms braced against a preacher bench pad. This setup eliminates body English and momentum, forcing the biceps to handle the full load through every inch of the range. Consistent progressive overload on exercises like this — gradually increasing volume or resistance over time — drives reliable strength and size gains (Peterson et al., 2011).
Most of the tension falls on the front of the upper arm, with the forearm flexors contributing to grip and wrist stability. Keep your upper arms pressed firmly into the pad, move only at the elbows, and lower the bar under control without slamming into full lockout at the bottom. Maintaining a structured training schedule and consistent effort over weeks produces measurable improvements in arm muscle development (Triki et al., 2023).
This curl variation fits well into arm days or upper-body sessions as either a primary or finishing movement. Reducing the load or limiting range of motion makes it more manageable, while slowing the eccentric phase with the arms firmly braced on the bench increases difficulty.
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Technique and form
How to perform the Ez Bar Preacher Curl
- Adjust the preacher bench to a height where your armpits rest comfortably on the top of the pad while seated, with your feet flat on the floor.
- Grasp the EZ bar with an underhand grip (palms facing up), hands positioned on the inner curves of the bar at approximately shoulder-width apart.
- Place your upper arms against the preacher bench pad, allowing your triceps to fully rest on the angled surface with elbows slightly bent.
- Exhale as you curl the weight upward in a controlled motion, keeping your upper arms stationary against the pad throughout the movement.
- Continue curling until your forearms are approximately vertical and the bar is at shoulder level, maintaining tension in your biceps at the top position.
- Hold the contracted position momentarily, focusing on squeezing your biceps without lifting your arms off the pad.
- Inhale as you slowly lower the bar back to the starting position, resisting gravity by controlling the descent rather than letting the weight drop.
- Extend your arms until they're almost straight with a slight bend in the elbows to maintain tension, then repeat for the desired number of repetitions.
Important information
- Never fully lock out your elbows at the bottom of the movement to keep constant tension on the biceps and reduce joint stress.
- Keep your wrists neutral (not flexed or extended) throughout the exercise to prevent strain and maximize bicep activation.
- Avoid lifting your upper arms off the pad during the curl, as this reduces isolation and may engage the shoulders.
- Start with a lighter weight to master proper form before progressing to heavier loads that challenge you while maintaining technique.
Common Mistakes: Ez Bar Preacher Curl
Benefits of the Ez Bar Preacher Curl
Muscles Worked: Ez Bar Preacher Curl
The Ez Bar Preacher Curl is an isolation exercise that focuses your effort on the biceps. Here's a breakdown of every muscle involved.
Primary muscles
Biceps — Your biceps bend your elbows and help control the weight. These are the main muscle doing the heavy lifting during the Ez Bar Preacher Curl.
Secondary muscles
Forearms — Your forearm muscles maintain grip strength throughout the movement. While not the main focus, these muscles play an important supporting role.
The Ez Bar Preacher Curl primarily works 1 muscle with 1 supporting muscle assisting the movement.
Risk Areas
FAQ - Ez Bar Preacher Curl
The EZ Bar Preacher Curl primarily targets the biceps brachii, with special emphasis on the lower portion of the muscle. It also engages the brachialis and brachioradialis as secondary muscles, contributing to overall arm development and thickness.
Sit with your armpits firmly against the top of the pad, keep your feet flat on the floor, and avoid lifting your shoulders during the movement. Focus on a controlled tempo with a full range of motion, allowing your arms to fully extend at the bottom without locking out your elbows.
For hypertrophy, perform 3-4 sets of 8-12 reps with a weight that challenges you in the final reps of each set. For more focused strength gains, you can use heavier weights for 4-6 reps, while endurance work benefits from 12-15 reps with lighter loads.
Avoid using momentum by swinging or lifting your shoulders, don't curl the weight too fast, and resist the urge to only use partial range of motion. Additionally, ensure you're not gripping the bar too tightly, which can cause unnecessary forearm fatigue and reduced biceps activation.
The angled grip of the EZ bar makes preacher curls generally wrist-friendly compared to straight bar curls. If you still experience discomfort, try adjusting your grip width, using wrist wraps for support, or switching to dumbbells which allow for a more natural wrist position.
Scientific References
Triki R, Zouhal H, Chtourou H, et al. · Int J Sports Physiol Perform (2023)
Impact of exercise selection on hamstring muscle activation
Bourne MN, Williams MD, Opar DA, et al. · Br J Sports Med (2017)
Progression of volume load and muscular adaptation during resistance exercise
Peterson MD, Pistilli E, Haff GG, et al. · Eur J Appl Physiol (2011)
Sources are peer-reviewed academic publications from PubMed.
Ez Bar Preacher Curl
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