In This Article
Forearm Muscle Anatomy
Your forearm has around 20 muscles organized into two groups. The anterior compartment (flexors) closes your hand and curls the wrist inward. The posterior compartment (extensors) opens your hand and extends the wrist backward. Balanced forearm training targets both groups.
Flexors (Front)
Close the hand & curl the wrist
- Flexor Digitorum Superficialis
- Flexor Digitorum Profundus
- Flexor Carpi Radialis / Ulnaris
Flexors: gripping and wrist curls
Extensors (Back)
Open the hand & extend the wrist
- Extensor Digitorum Communis
- Extensor Carpi Radialis
- Brachioradialis
Extensors: reverse curls, wrist extension
The forearm's two muscle compartments. Balanced training requires exercises for both flexors and extensors.
The three primary grip muscles are the flexor digitorum profundus (deep finger flexor), flexor digitorum superficialis (surface finger flexor) and flexor pollicis longus (thumb flexor). These muscles reach the fingertips through long tendons.
The brachioradialis is the most visible muscle on the top of the forearm. It assists with elbow flexion and gives the forearm its curved shape when developed. Hammer curls and reverse curls target this muscle directly.
The complete grip strength guide covers forearm anatomy in detail. Measured handgrip force by age and sex is on the grip strength by age page.
No-Equipment Forearm Exercises
The exercises in this section require no weights or specialized equipment. A pull-up bar or any overhead structure is sufficient for most of them.
Dead Hang
BeginnerThe dead hang is a simple way to train the forearm flexors with your bodyweight. It loads the forearm flexors through an isometric contraction. Grip a bar overhead, hang with arms fully extended and hold until just before your grip gives out. Stop short of form breakdown.
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| Muscles | All forearm flexors, lats, core |
| Sets × Duration | 3 to 4 × controlled hold (about 20 to 60 sec) |
| Rest | 60 to 90 sec between sets |
| Progression | Add time → add weight → reduce fingers |
Read the full dead hang technique guide for grip placement and shoulder positioning.
Towel Hang
IntermediateDrape a towel over a pull-up bar and grip the towel ends. The thick and soft surface makes the support grip harder. The fingers cannot lock around a rigid bar.
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| Muscles | Forearm flexors (emphasis on finger flexors) |
| Sets × Duration | 3 × max hold (15 to 40 sec) |
| Rest | 90 sec |
| Progression | Thicker towel → single towel → one arm |
Learn more in the towel hang guide.
Fingertip Push-Ups
IntermediatePerform push-ups on your fingertips instead of flat palms. Fingertip support is held mainly by the finger flexors. This trains the finger flexors and wrist stabilizers. Start on your knees if full fingertip push-ups are too difficult.
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| Muscles | Finger flexors, wrist stabilizers, chest, triceps |
| Sets × Reps | 3 × 8 to 15 |
| Rest | 60 sec |
| Progression | Knees → full → feet raised → fewer fingers |
Wrist Rotations (No Weight)
BeginnerExtend your arms in front of you and make fists. Rotate your fists in slow circles. Do 15 clockwise and then 15 counterclockwise. This warms up the wrist joint and trains the pronators and supinators that rotate the forearm.
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| Muscles | Pronator teres, supinator, wrist stabilizers |
| Sets × Reps | 2 × 15 each direction |
| Rest | 30 sec |
| Progression | Add a light dumbbell (1 to 3 lbs) |
Crab Walk
BeginnerSit on the floor with your hands behind you and your fingers pointing toward your feet. Lift your hips and walk forward on hands and feet. This loads the wrist extensors under bodyweight in a position they rarely train.
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| Muscles | Wrist extensors, forearm stabilizers, shoulders, triceps |
| Sets × Distance | 3 × 20 to 30 feet |
| Rest | 60 sec |
| Progression | Increase distance → add speed |
Dumbbell Forearm Exercises
Wrist Curls
BeginnerSit on a bench with your forearms resting on your thighs and your palms facing up. Curl the dumbbells upward by flexing your wrists. Lower slowly. This isolates the wrist flexors with a full range of motion that dead hangs cannot provide.
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| Muscles | Flexor carpi radialis and flexor carpi ulnaris |
| Sets × Reps | 3 × 15 to 20 |
| Rest | 60 sec |
| Progression | +2.5 lbs when 20 reps is easy |
See the full breakdown in the wrist curls guide.
Reverse Wrist Curls
BeginnerSame position as wrist curls but with palms facing down. Extend the wrists upward against the dumbbell weight. Use lighter weight than standard wrist curls because the extensors are weaker. Some people add extensor work to balance flexor-heavy grip training; evidence that it prevents elbow pain is limited.
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| Muscles | Extensor carpi radialis and extensor digitorum |
| Sets × Reps | 3 × 15 to 20 |
| Rest | 60 sec |
| Progression | +1 to 2.5 lbs |
Hammer Curls
BeginnerStand holding dumbbells with a neutral grip (palms facing each other). Curl the weight toward your shoulders without rotating your wrists. Hammer curls target the brachioradialis. It is the most visible muscle on the top of the forearm.
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| Muscles | Brachioradialis and biceps brachii |
| Sets × Reps | 3 × 10 to 12 |
| Rest | 60 to 90 sec |
| Progression | +5 lbs |
Farmer's Walk
BeginnerHold heavy dumbbells at your sides and walk for distance or time. The sustained grip demand builds forearm endurance and total-body stability. Farmer's walks train grip under dynamic conditions that transfer to real-world carrying tasks.
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| Muscles | All forearm flexors, traps, core, legs |
| Sets × Distance | 3 to 4 × 40 to 60 yards (or 30 to 45 sec) |
| Rest | 90 to 120 sec |
| Progression | +weight → +distance → use fat grips |
Zottman Curls
IntermediateCurl dumbbells up with palms facing up (standard curl). Rotate to palms facing down at the top. Lower slowly with this reversed grip. This single exercise trains the biceps on the way up and the brachioradialis and forearm extensors on the way down.
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| Muscles | Biceps on the way up and brachioradialis and extensors on the way down |
| Sets × Reps | 3 × 8 to 12 |
| Rest | 60 to 90 sec |
| Progression | Slow the negative to 3 to 4 seconds |
Barbell & Bar Exercises
Reverse Barbell Curl
IntermediatePerform a standard barbell curl with an overhand (pronated) grip. The reversed hand position shifts the load from the biceps to the brachioradialis and forearm extensors. Use a lighter weight than your standard curl.
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| Muscles | Brachioradialis, extensor carpi radialis, biceps |
| Sets × Reps | 3 × 10 to 15 |
| Rest | 60 to 90 sec |
| Progression | +5 lbs when form stays strict |
Behind-the-Back Wrist Curls
IntermediateStand holding a barbell behind your back with an underhand grip. Curl the bar using only your wrists by flexing the fingers and wrist. The behind-the-back position prevents cheating with arm swing and provides constant tension through a long range of motion.
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| Muscles | Flexor digitorum and flexor carpi radialis/ulnaris |
| Sets × Reps | 3 × 12 to 20 |
| Rest | 60 sec |
| Progression | Let the bar roll to your fingertips and curl it back to your palm |
Weighted Dead Hang
AdvancedPerform a dead hang with added weight using a dip belt, weighted vest or dumbbell between your feet. Add load only after a comfortable and pain-free bodyweight hang of about 45 seconds. Extra load makes the forearm flexors produce more force than bodyweight alone.
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| Muscles | All forearm flexors, lats, core |
| Sets × Duration | 4 × 15 to 30 sec (stop short of failure) |
| Rest | 90 to 120 sec |
| Progression | +5 to 10 lbs when 30 sec is achievable |
Full programming in the weighted dead hang guide.
Grip Tool Exercises
Plate Pinches
IntermediateGrip two weight plates smooth-side-out between your thumb and fingers. Hold for time. Plate pinches isolate the thumb and the pinch grip muscles that other exercises miss. Strong pinch grip transfers to holding odd-shaped objects.
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| Muscles | Flexor pollicis longus and adductor pollicis |
| Sets × Duration | 3 to 4 × 15 to 30 sec |
| Rest | 60 to 90 sec |
| Progression | Add plates → one hand → wider plates |
Grip Trainer Crushes
Beginner+Squeeze a spring-loaded grip trainer through its full range of motion. Hold the closed position for 2 to 3 seconds before releasing slowly. Grip trainers allow precise resistance progression and are portable enough to use anywhere.
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| Muscles | Forearm flexors and finger flexors |
| Sets × Reps | 3 × 10 to 15 (2 sec hold at close) |
| Rest | 60 sec |
| Progression | 50 → 100 → 150 lbs resistance |
See the grip attachments guide for hand gripper options.
Complete Forearm Workout
A complete forearm workout trains grip endurance, wrist flexion, wrist extension and pinch strength in a single session.
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| Order | Exercise | Sets × Reps/Duration | Rest |
|---|---|---|---|
| 1 | Dead Hang | 3 × controlled hold | 90 sec |
| 2 | Wrist Curls | 3 × 15 to 20 | 60 sec |
| 3 | Reverse Wrist Curls | 3 × 15 to 20 | 60 sec |
| 4 | Hammer Curls | 3 × 10 to 12 | 60 sec |
| 5 | Plate Pinches | 3 × 20 sec | 60 sec |
Order matters: Start with dead hangs while your grip is fresh. Move to isolation exercises that fatigue individual muscles. Finish with pinch work which uses the least total muscle mass.
Programming & Frequency
Forearms are used all day. Many people train them more often than larger muscles. Add volume gradually. Start with 3 sessions a week on non-consecutive days. Add a session only if you stay pain free. Leave at least one rest day between hard sessions. This is common training practice and not a tested prescription.
Recommended Frequency
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| Level | Frequency | Volume Per Session |
|---|---|---|
| Beginner | 3 per week | 3 to 4 exercises and 9 to 12 total sets |
| Intermediate | 3 per week and adding one only if you stay pain free | 4 to 5 exercises and 12 to 16 total sets |
| Advanced | 3 per week and more only if you stay pain free | 5 to 6 exercises and 15 to 20 total sets |
Progressive Overload
Progressive overload is a general resistance training principle (Schoenfeld, 2010). Increase one variable at a time:
- Time: Add about 5 seconds to your target dead hang or isometric hold once you complete every set cleanly and about once a week
- Weight: Add 1 to 2.5 lbs to wrist curls and hammer curls
- Reps: Add 1 to 2 reps per set before increasing weight
- Difficulty: Progress to harder exercise variations (standard bar → thick bar → towel)
When to Train Forearms
Train forearms at the end of your workout or in a separate session. Fatigued forearms compromise grip on compound movements like deadlifts, rows and pull-ups. If you train forearms before these exercises your performance on the compound lifts will drop.
The exception is dead hangs. Short dead hang sets (10 to 20 seconds) work well as a warm-up before pulling exercises because they activate the forearms without fatiguing them to failure.
Frequently Asked Questions
What is the best exercise for forearms?
Dead hangs are a simple way to train the forearm flexors with your bodyweight. For complete forearm development, combine dead hangs with wrist curls for the flexors and reverse wrist curls for the extensors.
How can I build forearms without equipment?
Dead hangs from any overhead structure, fingertip push-ups, towel hangs and crab walks build forearm strength without weights. Dead hangs from a tree branch, playground bar or door frame build grip endurance at no cost. Fingertip push-ups train the finger flexors and wrist stabilizers. A tennis ball serves as a basic grip trainer.
How often should I train forearms?
Start with 3 sessions a week on non-consecutive days. Forearms are used all day. Many people train them more often than larger muscles. Add volume gradually and leave at least one rest day between hard sessions.
Do forearm exercises improve grip strength?
Forearm exercises can improve grip strength because the muscles that control grip are in the forearm. Training both flexors and extensors with exercises like dead hangs, wrist curls and farmer's walks can improve grip strength over several weeks.
Why are my forearms not growing?
Forearms often resist growth when they are only trained indirectly through compound lifts. Compound exercises rarely push forearms close to their limit. Add direct forearm work with progressive overload, such as dead hangs and wrist curls with controlled negatives. Stop sets short of form breakdown.