Exercise guide
Barbell Behind Back Finger Curl
- Beginner
- Isolation
- Rep-based
- Lower arms
- Upper arms
This isolation exercise specifically targets the forearm flexors and enhances grip strength by allowing a deep stretch and peak contraction behind the body.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Stand with your feet shoulder-width apart, holding a barbell behind your glutes with an overhand grip (palms facing away from your body).
- Position your hands shoulder-width apart and allow your arms to hang fully extended.
- Maintain an upright posture with your chest up and shoulders retracted.
How to do it
- Inhale and slowly lower the barbell by opening your hands, allowing the bar to roll down to the tips of your fingers.
- Exhale as you curl the bar back up by first closing your fingers into a fist and then flexing your wrists upward as high as possible.
- Squeeze your forearms hard at the top of the movement for a one-second pause.
- Lower the bar back to the starting position using a controlled 2-second eccentric tempo.
Form checklist
- Keep your elbows locked and arms straight to ensure the forearms do all the work.
- Avoid shrugging your shoulders or using body momentum to swing the weight.
- Ensure the bar rolls all the way to the fingertips to maximize the range of motion.
- Keep your core tight to prevent your lower back from arching during the lift.
Pro tips
- Use a thumbless grip to allow the bar to roll further down the fingers without interference.
- Focus on the mind-muscle connection by visualizing your forearm muscles shortening as you curl the weight upward.
Make it harder
- Add a 3-second isometric hold at the peak of the contraction to increase time under tension.
- Wrap a towel or use thick grips around the barbell to significantly increase the demand on your grip strength.
Frequently asked
- What muscles does the barbell behind back finger curl work?
- The barbell behind back finger curl primarily targets the forearms, and also works the biceps as secondary muscles.
- What equipment do you need for the barbell behind back finger curl?
- The barbell behind back finger curl uses barbell.
- Is the barbell behind back finger curl good for beginners?
- Yes. The barbell behind back finger curl is a beginner-friendly movement and a strong foundation to build on.