Quick Answer
Hammer Curl is a beginner strength exercise that targets your biceps and forearms. It uses a dumbbell. Stand tall, feet shoulder-width.
Video Tutorial
How to Perform the Hammer Curl
- 1
Stand tall, feet shoulder-width.
- 2
Hold dumbbell each hand, arms extended, palms facing torso (neutral grip).
- 3
Keep elbows tucked.
- 4
Exhale, curl weights upward towards shoulders.
- 5
Maintain neutral grip throughout.
- 6
Keep upper arms stationary.
- 7
Squeeze biceps/forearms at top.
- 8
Inhale, slowly lower dumbbells back to start.
- 9
Repeat.
Common Mistakes to Avoid
- !Rushing reps instead of controlling the lowering (eccentric) phase — aim for 2–3 seconds down.
- !Letting form break down as reps add up. Stop the set when technique slips, not when you physically can't do another rep.
- !Using momentum instead of muscle tension. Slow the tempo and feel the target muscle doing the work.
Tips for Better Form
- ✓Breathe out during the effort (concentric) and breathe in on the return (eccentric).
- ✓Use a mirror or film yourself on your first session — your perceived form and actual form often differ.
- ✓Brace your core as if someone were about to punch you in the stomach. This stabilizes your spine in every rep.
- ✓Don't worry about load — master the movement pattern with light weight or easier variations first.
Alternative Exercises
If the Hammer Curl isn't right for your body, equipment, or goal, try these similar exercises that hit the same muscle groups:
Frequently Asked Questions
What muscles does the Hammer Curl work?
The Hammer Curl primarily targets your biceps and forearms.
What equipment do I need for the Hammer Curl?
The Hammer Curl needs a dumbbell. You can perform it at home or at the gym as long as you have what's listed.
Is the Hammer Curl suitable for beginners?
Yes. The Hammer Curl is a beginner-level exercise. Start with lighter load or fewer reps and focus on form before adding intensity.
How many sets and reps of Hammer Curl should I do?
For strength: 3–5 sets of 3–6 reps with longer rest (2–3 min). For hypertrophy (muscle growth): 3–4 sets of 8–12 reps with moderate rest (60–90 sec). For endurance: 2–3 sets of 15+ reps with short rest (30–45 sec). Adjust based on your program and goal.
Can I do the Hammer Curl every day?
No. Muscles need 48 hours to recover between heavy training sessions. If you want to train biceps and forearms more frequently, alternate harder and easier variations and keep overall weekly volume moderate.