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

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

Get comparison link

Comparison link

Select the link and use your device's Copy command.

Ez Bar Seated Close Grip Concentration Curl vs Ez Barbell Seated Curls — you’re about to see which EZ-bar curl better fits your goals. I’ll walk you through how each move loads the biceps, the subtle differences in forearm involvement, the equipment and setup you need, and how to program them into your workouts with rep ranges and progression tips. Read on for specific technique cues, biomechanics that explain when each exercise wins, and clear recommendations so you can pick the right curl for muscle growth, strength, or easy home training.

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 Seated Curls

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 Seated Curls

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 Seated Curls
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 Seated Curls 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 target elbow flexion primarily, loading the long and short heads of the biceps brachii. Biomechanically they share the same force vector around the elbow joint, so peak torque occurs near 60–80° of elbow flexion. Expect similar overall biceps work across a set when matched for volume, but differences arise in range-of-motion emphasis and peak contraction timing.

Secondary muscle differences

Ez Bar Seated Close Grip Concentration Curl increases peak biceps short‑head engagement and medial brachialis tension during the final 20–30° of flexion due to the narrow grip and fixed elbow position. Ez Barbell Seated Curls recruit the brachioradialis and wrist flexors slightly more across the full ROM, because a wider or neutral wrist position and bilateral loading create greater forearm stabilization demand.

Muscle involvement analysis

The concentration-style close grip biases end‑range isometric tension — more time under high tension at near-full flexion — while the standard seated EZ curl spreads activation more evenly through the concentric and eccentric phases. In practical terms, expect sharper peak contraction with the close-grip, and steadier, higher-average muscle activation through the set with the seated EZ-barbell curl.

Equipment and setup

EZ Bar Seated Close Grip Concentration Curl: setup

Ez Bar Seated Close Grip Concentration Curl needs an EZ-barbell, an adjustable bench set to upright or slight forward lean, and a secure foot placement to brace the arm. A pad or seated position that stabilizes the upper arm is helpful to isolate the elbow.

EZ Barbell Seated Curls: setup

Ez Barbell Seated Curls require an EZ-barbell and a flat bench or upright seat. You only need a stable seat and enough loadable plates—no special bracing or isolation setup beyond keeping the torso upright.

Access and practicality

Ez Barbell Seated Curls — they demand the least setup and are quicker to load and teach. Because the bilateral movement is intuitive and uses a simple seated position, more lifters can perform it reliably with minimal coaching.

Learning and progression

Learning the movements

Ez Barbell Seated Curls are easier to learn: a natural bilateral elbow flexion pattern, simple wrist alignment, and straight-forward tempo make the movement beginner-friendly. The concentration close-grip variant requires more control to eliminate shoulder swing and maintain a fixed elbow — that takes practice.

Progression considerations

Ez Barbell Seated Curls offer broader progression: you can add load in 2.5–5 lb increments, manipulate sets and reps (6–12+ rep ranges), and use tempo work. The close-grip concentration curl has great hypertrophy potential but is often limited by grip and single-arm loading, so progression tends to be smaller increments and increased time under tension.

Limitations and precautions

Relative injury risk is low for both when performed with control. The close-grip concentration curl carries slightly higher risk of medial elbow strain or wrist discomfort if you over-tighten the grip or allow wrist deviation. Heavy seated EZ-bar curls can create elbow tendon stress if you use excessive momentum; strict form and controlled eccentrics reduce both risks.

Pros & Cons

EZ Bar Seated Close Grip Concentration Curl

+ Pros

Superior peak contraction and isolation at end‑range
Better for targeting the short head and medial brachialis
Reduces cheating by stabilizing the upper arm
Great for finishing sets and accentuating time under tension

− Cons

Harder to load heavy — limited progression by weight increments
Requires strict technique and upper-arm stabilization
Can cause wrist or medial elbow discomfort with poor grip alignment

EZ Barbell Seated Curls

+ Pros

Easy to learn and teach to beginners
Allows heavier loading and straightforward progression
More even activation through the full concentric–eccentric range
Quick setup and minimal equipment demand

− Cons

Slightly less peak end‑range contraction than single‑arm close-grip
More prone to momentum/cheating without strict tempo
Less isolation of the short head compared with concentration style

When Each Exercise Wins

For muscle hypertrophy: Ez Bar Seated Close Grip Concentration Curl

The close-grip concentration curl produces stronger end‑range tension and isolates the biceps short head, increasing time under peak tension. Use 8–12 reps with 2–3 second eccentrics and 1–2 second holds at the top to maximize mechanical tension.

For strength gains: Ez Barbell Seated Curls

Seated EZ-bar curls allow heavier bilateral loading and steadier progressive overload (add 2.5–5 lb plates). Perform 4–8 rep sets with controlled tempo to build force production at intermediate elbow angles.

For beginners: Ez Barbell Seated Curls

The bilateral pattern is simpler to learn, requires less isolation setup, and tolerates higher absolute loads while teaching proper elbow flexion and wrist alignment. Start with light weight and 10–15 reps to ingrain form.

For home workouts: Ez Barbell Seated Curls

Both need an EZ-bar, but seated curls demand less exacting setup and let you use the same bar for other lifts. If you have limited plates, bilateral loading is more efficient for progression at home.

Frequently Asked Questions

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

Yes — pair them intelligently: use Ez Barbell Seated Curls earlier for heavier work (4–8 or 8–12 reps), then finish with concentration close‑grip sets for 8–15 reps to boost end‑range tension and metabolic stress. Keep total weekly volume consistent to avoid overuse.

Which exercise is better for beginners?

Ez Barbell Seated Curls are better for beginners because the movement is intuitive, easier to load progressively, and requires less specific arm stabilization. Start light and focus on slow eccentrics to build tendon resilience.

How do the muscle activation patterns differ?

The concentration close‑grip emphasizes peak activation at terminal flexion by increasing isometric tension of the short head and brachialis, while the seated EZ curl distributes activation more evenly through the range and recruits more forearm stabilizers. That stems from grip width, elbow positioning, and moment arm changes across the ROM.

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

They can replace it for general biceps development, but you lose some peak end‑range isolation. If your goal is specific short‑head hypertrophy or to correct a weak peak contraction, keep the close‑grip concentration curl in rotation.

Comparison Summary

Use Ez Bar Seated Close Grip Concentration Curls when you want maximum isolation and sharper peak contraction — ideal as a finisher for hypertrophy blocks or to bring up lagging short‑head development. Pick 8–12 reps with strict upper-arm bracing and slow eccentrics. Choose Ez Barbell Seated Curls when you need straightforward loading, faster progression, or you’re teaching beginners; load heavier, work 4–8 reps for strength or 8–12 for size, and control the eccentric. Both deserve a place in a balanced program: use the seated EZ curls for base strength and add close‑grip concentration curls for targeted volume and finishers.

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 Seated Curls

Sit on a bench with your feet flat on the ground and your back straight.
Hold the ez barbell with an underhand grip, palms facing up, and your hands shoulder-width apart.
Rest your upper arms on your thighs, allowing the ez barbell to hang down in front of you.

Read remaining steps for EZ Barbell Seated Curls

Keeping your upper arms stationary, exhale and curl the ez barbell upwards towards your shoulders.
Pause for a moment at the top, squeezing your biceps.
Inhale and slowly lower the ez barbell back to the starting position.
Repeat for the desired number of repetitions.