EZ Bar Seated Close Grip Concentration Curl vs EZ Barbell Close Grip Preacher Curl

Compare target muscles, equipment, difficulty, movement type, and secondary muscles for EZ Bar Seated Close Grip Concentration Curl and EZ Barbell Close Grip Preacher Curl.

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Ez Bar Seated Close Grip Concentration Curl vs Ez Barbell Close Grip Preacher Curl — if you want stronger, thicker biceps, picking the right isolation move matters. You’ll get a clear breakdown of muscle activation, equipment needs, learning curve, and practical programming (sets, reps, and tempo). I’ll show you which exercise biases peak contraction versus constant tension, how forearm involvement differs, and when to use each in 8–15 rep hypertrophy blocks or lower-rep strength phases. Expect specific technique cues so you can start applying either move on your next arm day.

Exercise A

EZ Bar Seated Close Grip Concentration Curl

Target Biceps

Equipment Ez-barbell

Body Part Upper-arms

Difficulty Intermediate

Movement Isolation

Secondary Muscles

Forearms

Exercise B

EZ Barbell Close Grip Preacher Curl

Target Biceps

Equipment Ez-barbell

Body Part Upper-arms

Difficulty Beginner

Movement Isolation

Secondary Muscles

Forearms

Muscles used

Listed target and secondary muscles, shown on the body. Locations, not activation or strength scores.

Target
Secondary
Not highlighted

EZ Bar Seated Close Grip Concentration Curl

Front

Back

Target: Biceps
Secondary: Forearms

EZ Barbell Close Grip Preacher Curl

Front

Back

Target: Biceps
Secondary: Forearms

Grey does not mean a muscle is unused. The diagrams show only the mapped catalogue labels.

Attribute	EZ Bar Seated Close Grip Concentration Curl	EZ Barbell Close Grip Preacher Curl
Target Muscle	Biceps	Biceps
Body Part	Upper-arms	Upper-arms
Equipment	Ez-barbell	Ez-barbell
Difficulty Different	Intermediate	Beginner
Movement Type	Isolation	Isolation
Secondary Muscles	Forearms	Forearms

Visual Comparison

An illustrative 1–10 profile derived from catalog difficulty, equipment, and listed-muscle fields—not measured performance or muscle activation.

Key Differences

Difficulty levels differ: EZ Bar Seated Close Grip Concentration Curl is intermediate, while EZ Barbell Close Grip Preacher Curl is beginner.
Both exercises target the Biceps using Ez-barbell. The catalogue does not establish which exercise is better for an individual goal.

Muscle comparison

Shared target muscles

Both exercises primarily load the biceps brachii through elbow flexion and supination. Peak activation occurs near 30–40° of elbow flexion when the biceps’ moment arm is largest; both moves hit that range. The main overlap is a focus on the short and long head of the biceps during concentric peak contraction, so both drive muscle growth when used in comparable volume (8–15 reps, 3–5 sets).

Secondary muscle differences

Secondary recruitment differs in forearm and stabilizer demand: the seated close-grip concentration curl increases wrist and brachioradialis tension because of the fixed arm position and close hand spacing, while the preacher curl reduces trunk and shoulder involvement, shifting slightly more load to the biceps with less need for forearm stabilization.

Muscle involvement analysis

Concentration curls create a strong peak contraction with a long isometric hold at the top if you pause, increasing time under tension at short muscle lengths. Preacher curls emphasize a controlled ascending force curve from a stretched position (near full extension) through mid-range, placing more time under tension at longer muscle lengths and leveraging the length–tension relationship to stress different sarcomeres.

Equipment and setup

EZ Bar Seated Close Grip Concentration Curl: setup

Ez Bar Seated Close Grip Concentration Curl requires an EZ-bar, a bench to sit on, and ideally a thigh to brace the working arm—no specialized bench needed.

EZ Barbell Close Grip Preacher Curl: setup

Ez Barbell Close Grip Preacher Curl requires an EZ-bar and a preacher (scott) bench or an angled pad to lock the upper arms; some gyms have dedicated machines, while others use an incline bench as a substitute.

Access and practicality

Ez Bar Seated Close Grip Concentration Curl — it needs less specialized equipment (only a bench and EZ-bar) and you can perform it in most gyms or at home with a simple setup.

Learning and progression

Learning the movements

Preacher curls are easier to learn because the pad enforces arm position and reduces cheating; beginners can maintain consistent range of motion. Concentration curls demand more positional setup and cueing to avoid shoulder movement, so they have a slightly steeper learning curve.

Progression considerations

Concentration curls offer varied progression via tempo, isometric holds, partials, and unilateral overload to even out asymmetries. Preacher curls scale well with pure load increases and strict sets, making linear weight progression straightforward for beginners.

Limitations and precautions

Preacher curls carry a slightly higher risk of elbow stress if you lock the joint under heavy load due to the stretched start position; concentration curls can cause wrist strain with a narrow grip if you flare the wrist. Overall, both are low to moderate risk when performed with controlled range and no heavy ballistic loading.

Pros & Cons

EZ Bar Seated Close Grip Concentration Curl

+ Pros

Strong peak contraction and unilateral focus to fix imbalances
Requires minimal specialized equipment
Easy to implement tempo and isometric holds for hypertrophy
Close grip increases short-head biceps emphasis and forearm involvement

− Cons

Requires strict bracing to avoid shoulder swing
Narrow grip can stress the wrist without correct alignment
Less consistent range of motion between reps if form drifts

EZ Barbell Close Grip Preacher Curl

+ Pros

Beginners friendly — pad enforces arm position and reduces cheating
Consistent ROM from stretched to contracted position
Better for progressive loading with heavier sets
Reduces trunk involvement, isolating the biceps effectively

− Cons

Needs a preacher bench or pad — less accessible at home
Start position puts biceps in a stretched, higher-tension spot that can irritate elbows for some lifters
Less peak contraction emphasis compared to unilateral concentration holds

When Each Exercise Wins

For muscle hypertrophy: Ez Bar Seated Close Grip Concentration Curl

Concentration curls let you maximize peak contraction and unilateral volume, which increases time under tension at short muscle lengths—ideal for 8–12 rep hypertrophy sets and targeted long-form isometrics.

For strength gains: Ez Barbell Close Grip Preacher Curl

Preacher curls allow heavier, more consistent loading through a full ROM with less cheating, making them better for progressive overload schemes and lower-rep strength work (4–6 reps).

For beginners: Ez Barbell Close Grip Preacher Curl

The preacher pad enforces fixed upper-arm position and reduces compensatory shoulder movement, so beginners learn strict elbow flexion mechanics faster and safer.

For home workouts: Ez Bar Seated Close Grip Concentration Curl

You only need an EZ-bar and a bench or chair to brace your arm; no specialized preacher bench is required, so it’s more practical for limited equipment setups.

Frequently Asked Questions

Can I do both Ez Bar Seated Close Grip Concentration Curl and Ez Barbell Close Grip Preacher Curl in the same workout?

Yes — pairing them works well: use the preacher curl earlier for heavier, compound-style sets (4–8 reps) and finish with unilateral concentration curls for 8–15 rep burnout sets or isometric holds to increase time under tension.

Which exercise is better for beginners?

The Ez Barbell Close Grip Preacher Curl is better for beginners because the pad locks the upper arm in place, enforces strict elbow flexion, and reduces compensatory movement, allowing safer load progression.

How do the muscle activation patterns differ?

Concentration curls bias peak contraction and short-range tension by isolating the distal biceps with unilateral bracing, while preacher curls create a stronger stretch at the start of the lift and emphasize constant tension through the ascending force curve and longer muscle lengths.

Can Ez Barbell Close Grip Preacher Curl replace Ez Bar Seated Close Grip Concentration Curl?

It can replace it if your goal is consistent loading and progressive strength; however, if you need to correct imbalances or emphasize peak contraction for hypertrophy, keep the concentration curl in your program as a complement.

Comparison Summary

Use the Ez Bar Seated Close Grip Concentration Curl when you want peak contraction, unilateral work to fix left-right differences, and hypertrophy-focused time under tension (8–15 reps, 2–4 second eccentrics, 1–2 second pauses at the top). Choose the Ez Barbell Close Grip Preacher Curl if you want a beginner-friendly, strictly loaded movement for progressive strength (4–6 or 6–10 reps) and consistent ROM. Both target the biceps strongly; pick the concentration curl for isolation detail and the preacher curl for scalable loading and technical consistency.

Exercise instructions

Steps from the exercise catalogue. Read the full sequence before starting.

EZ Bar Seated Close Grip Concentration Curl

Sit on a bench with your feet flat on the ground and hold an EZ barbell with an underhand grip.
Rest your elbow on the inside of your thigh, just above the knee.
Curl the barbell up towards your shoulder while keeping your upper arm stationary.

Read remaining steps for EZ Bar Seated Close Grip Concentration Curl

Squeeze your biceps at the top of the movement, then slowly lower the barbell back down to the starting position.
Repeat for the desired number of repetitions.

EZ Barbell Close Grip Preacher Curl

Sit on a preacher curl bench and place your upper arms on the pad, gripping the ez barbell with an underhand grip.
Rest your triceps on the pad and fully extend your arms, keeping your back straight.
Slowly curl the barbell towards your shoulders, contracting your biceps.

Read remaining steps for EZ Barbell Close Grip Preacher Curl