If you want to build fuller-looking biceps, the short head deserves attention. Preacher curls, concentration curls, spider curls, and other curls that place the upper arm in front of the torso can be useful options for emphasizing the short head while still training the biceps as a whole.
The short head isn't a muscle you can completely isolate. Both heads of the biceps brachii work together during elbow flexion and forearm supination. What you can do is change your shoulder position, elbow placement, and grip to shift where the biceps experience the most tension.
For home lifters, that means you don't need a commercial gym to train your arms effectively. An adjustable FID bench, dumbbells, or a cable system can cover most of the movements discussed in this guide.
This guide explains where the short head is located, how to bias it during curls, which exercises work well for short-head-focused training, and how to program them without unnecessarily beating up your elbows.
The biceps brachii has two heads: the long head and the short head. Both help bend the elbow and rotate the forearm into a supinated position, so neither head works completely on its own.
The short head sits on the inner side of the upper arm and contributes to the overall thickness and fullness of the biceps, particularly when viewed from the front.
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Origin: The short head begins at the coracoid process of the scapula.
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Insertion: Both heads join together before attaching to the radius in the forearm.
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Position: The short head sits more toward the inner side of the upper arm.
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Visual role: Developing the short head can contribute to a fuller appearance across the front of the upper arm.
The two heads work together, but their positions and shoulder attachments differ.
| Biceps Head |
General Position |
Training Consideration |
| Long Head |
Outer side of the upper arm |
Often associated with the biceps peak and is affected by shoulder extension |
| Short Head |
Inner side of the upper arm |
Contributes to overall arm fullness and can be emphasized with the upper arm positioned in front of the torso |
Rather than trying to build one head while ignoring the other, a well-rounded biceps program should use different shoulder and elbow positions to train the muscle through different ranges.
Not completely.
Both heads contribute during most curling movements. However, you can change the relative emphasis by adjusting your shoulder position, elbow placement, and grip.
This is why exercises such as preacher curls, concentration curls, and spider curls can be useful additions to a program focused on fuller-looking biceps.
Shoulder position and elbow placement are more useful variables than simply changing your grip width.
When your elbow moves slightly in front of your torso, your shoulder is placed into a degree of flexion. This changes the length and leverage of the two biceps heads and reduces some of the stretch placed on the long head.
That's one reason preacher curls and other curls performed with the upper arm in front of the body are often included in short-head-focused routines.
Range of motion matters, too. Different curl variations can place the highest mechanical demand at different points in the movement. Instead of chasing a particular exercise because it is supposed to “isolate” one part of the biceps, focus on controlled reps and a range of motion you can actually own.
A fully supinated grip—palms facing up—allows the biceps to contribute strongly to elbow flexion and forearm supination.
Neutral-grip hammer curls and pronated curls still train the elbow flexors, but changing your grip changes the muscles involved and the way the movement feels.
For hypertrophy, the bigger picture matters more than one grip: use a full, controlled range of motion, train close enough to failure, and gradually increase the amount of work you can perform with good technique.
A wider grip on a barbell or EZ-bar curl may change the angle of the upper arm and forearm slightly, but grip width shouldn't be treated as a magic switch for the inner biceps.
If your goal is to place more emphasis on the short head, elbow and shoulder position are generally more meaningful variables to experiment with.
Wide-grip curls can still be useful, especially when you want a heavier bilateral curl that fits naturally into your overall arm training.
You don't need to perform every variation in one workout. Pick a few movements that give you different loading profiles and fit the equipment you have.
1. Preacher Curls
Preacher curls support the upper arm against a pad and make it harder to use momentum.
Setup: Adjust the pad so your upper arm is comfortably supported. Keep your shoulder relaxed rather than forcing it forward.
Execution: Lower the weight under control until your elbow is close to full extension, then curl the weight back up without lifting your upper arm from the pad.
Focus: Control the bottom portion instead of dropping quickly into the stretched position.
Preacher curls are especially useful when you want a strict curl with a stable setup.
2. Concentration Curls
Concentration curls are a simple unilateral option that makes it easy to focus on one arm at a time.
Setup: Sit on a bench, lean slightly forward, and brace your upper arm against your inner thigh.
Execution: Curl the dumbbell without swinging your torso. Lower it slowly before starting the next rep.
Focus: Keep the shoulder quiet and let the elbow flex rather than turning the movement into a full-body effort.
Because each arm works independently, concentration curls can also be useful for identifying strength differences between sides.
3. Spider Curls
Spider curls place your torso against an incline bench while your arms hang toward the floor.
Setup: Set an adjustable bench to a moderate incline and lie chest-down with your arms hanging naturally.
Execution: Curl the dumbbells or EZ-bar while keeping your upper arms relatively still.
Focus: Avoid letting your elbows drift backward as you fatigue.
The position makes cheating more difficult and gives you another way to challenge the biceps without relying on standing momentum.
4. Wide-Grip Barbell or EZ-Bar Curls
If you want a heavier curl variation, a slightly wider grip can work well.
Setup: Use a grip somewhat wider than shoulder width and choose a load you can control.
Execution: Keep your elbows stable and curl without using your hips to move the weight.
Focus: Keep the movement strict enough that the biceps—not your lower back—are doing the work.
This variation doesn't isolate the short head, but it can complement more controlled single-arm and supported curls.
You can train the short head effectively with relatively little equipment.
| Equipment |
Useful Exercises |
Why It Works |
| Adjustable Bench + Dumbbells |
Concentration curls, spider curls |
Compact and versatile |
| Cable Pulley System |
Low-cable curls, cable curls |
Consistent resistance through the movement |
| Power Rack / All-in-One System |
Barbell curls, cable curls, chin-ups |
Lets you combine isolation and compound pulling work |
An adjustable bench can give you several different curling positions without taking up much space. The WB00 Adjustable FID Bench, for example, offers multiple back and seat positions that can be useful for different dumbbell-based movements.
Cable systems add another option. A low pulley lets you perform curls while maintaining cable tension throughout the movement, and an adjustable pulley can make it easier to change the line of pull.
For a compact home gym, the G3 Plate Loaded Pulley Tower provides adjustable pulley positions and supports cable movements such as curls, rows, and pulldowns.
If you prefer a selectorized setup, the G5 Weight Stack Pulley Tower offers multiple pulley positions and 1:1/2:1 ratio switching for different cable exercises.
If you already have an all-in-one rack or Smith machine setup, you can combine curls with rows, chin-ups, and other pulling movements without needing several separate machines.
For a home gym, versatility matters more than having a separate machine for every exercise.
An adjustable bench can handle concentration curls and spider curls, while a cable system gives you another way to train the biceps with a different resistance profile.
For lifters who want both free-weight and cable training in one station, the M4-2.0 All-In-One Smith Machine combines a Smith machine with a cable training system. Its current lineup includes Standard, Ultra, and Elite configurations.
For a heavier all-in-one setup, the ANUBIS™-2.0 All-In-One Trainer combines a 3" × 3" frame with adjustable cable positions, pull-up functionality, and multiple attachments.
The goal isn't to buy equipment specifically for one biceps exercise. It's to build a setup that can support your entire training program as your needs change.
More curls aren't automatically better.
Your biceps already work during chin-ups, pulldowns, rows, and other pulling exercises, so direct curl volume should be considered alongside the rest of your training.
2 times per week:
- Concentration Curls: 3 × 10–12
- Dumbbell Preacher or Incline Curls: 3 × 10–12
Start with a manageable load and focus on consistent technique before adding more exercises.
- Wide-Grip EZ-Bar Curls: 3–4 × 8–10
- Spider Curls: 3 × 10–12
- Low-Cable Curls: 3 × 12–15
- Supinated Chin-Ups: 3 × 6–10
You don't have to use all four movements every session. If your biceps are already getting significant work from back training, reducing direct curl volume may make more sense.
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Reps: Around 8–15 reps works well for many curl variations.
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Intensity: Keep most working sets around RPE 7–9, leaving roughly 1–3 good reps in reserve.
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Weekly Volume: Around 10–15 hard sets can be a useful starting range when direct and indirect biceps work are considered together.
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Progressive Overload: When you can complete all prescribed reps with clean technique, gradually increase the load or add reps.
The exact amount of volume you need will depend on your training age, recovery, and how much pulling work you already do.
1. Swinging the shoulders
If you have to throw your shoulders forward to move the weight, the load is probably too heavy.
2. Dropping the weight
The lowering phase still counts. Control the eccentric instead of letting gravity do all the work.
3. Letting the elbows move excessively
Some movement is normal, but repeatedly allowing the elbows to drift can change the exercise and make it harder to keep tension where you want it.
If fully supinated curls bother your elbows, temporarily using a neutral or semi-supinated grip may feel more comfortable.
You should also avoid stacking hard biceps sessions too closely together. Give the muscle and surrounding joints enough time to recover, particularly if your back training already includes a lot of pulling.
Persistent or worsening elbow pain is a reason to stop pushing through the movement and have the issue assessed rather than simply changing your grip.
Which exercise emphasizes the short head most?
No curl completely isolates the short head. Preacher curls, concentration curls, and spider curls are all useful options because they can place the upper arm in front of the torso and reduce the ability to use momentum.
Rather than looking for one “best” exercise, use a few variations that train the biceps from different positions.
How often should I train short-head-focused movements?
For many lifters, training the biceps directly two or three times per week can work well if total training volume is managed.
Remember that chin-ups, pulldowns, and rows also contribute to your weekly biceps workload.
Do wide-grip curls train the inner biceps better?
A wider grip can change the mechanics of a curl, but grip width alone is unlikely to dramatically shift all the work to the short head.
If short-head emphasis is your goal, experiment with elbow and shoulder position first, then use grip width as a secondary variable.
Can I train the short head with dumbbells at home?
Yes. Dumbbells are enough for concentration curls, spider curls, preacher-style curls, and several other variations.
An adjustable bench makes your options even more flexible, while a cable system can add continuous resistance and additional angles.
Do I need a separate machine to build my biceps?
No. A pair of dumbbells and an adjustable bench can provide plenty of effective biceps training.
If you want more exercise variety, a cable pulley system or multifunctional rack can add low-cable curls, chin-ups, and other pulling movements without requiring a dedicated biceps machine.
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