Cross-Body Hammer Curl

Anton YefanovUpdated September 6, 2026

The cross-body hammer curl, also called the pinwheel curl, holds a dumbbell with a neutral grip and curls it diagonally across the body toward the opposite shoulder. The neutral wrist keeps the brachialis and brachioradialis heavily involved alongside the biceps brachii, and the diagonal path keeps the dumbbell off the torso so the arm controls the weight instead of resting it. You work one arm at a time, which slows the set down and makes matching reps side to side straightforward. Keep the elbow close to your ribs and the shoulder still so the arm does the moving.

How to do the Cross-Body Hammer Curl

Hold a dumbbell in each hand at your sides with your palms facing your body.
Stand tall with your feet hip width apart and your abs braced.
Keep a small bend in the elbows and set your shoulders back and down.
Curl one dumbbell diagonally across your chest toward the opposite shoulder.
Squeeze at the top without letting the dumbbell touch your body.
Lower under control to your side, then repeat with the other arm.

Muscles worked

Primary:: Biceps
Secondary:: Forearms

Why train it

Neutral grip loads the brachialis and brachioradialis alongside the biceps.
One arm at a time makes side to side rep and load matching simple.
Needs only a pair of dumbbells, so it fits home and hotel gym programs.

Common mistakes

Resting the dumbbell against the chest at the top, which unloads the arm mid rep.
Rotating the torso to meet the dumbbell, which shortens the range the arm actually works.
Letting the elbow swing forward, so the front of the shoulder lifts the weight.
Shrugging the shoulder up as the dumbbell rises, which moves work to the traps.

Frequently asked questions

What muscles does the Cross-Body Hammer Curl work?

The Cross-Body Hammer Curl trains the biceps as the main target. Expect the forearms to take some of the load as well.

What equipment do I need for the Cross-Body Hammer Curl?

The Cross-Body Hammer Curl needs a pair of dumbbells. Nothing beyond that is required to run the movement the way it is described above.

Is the Cross-Body Hammer Curl suitable for beginners?

Yes. The Cross-Body Hammer Curl is rated beginner: the pattern is quick to pick up and forgiving when a rep drifts. Start light and add weight once the form repeats itself without you thinking about it.

Can I do the Cross-Body Hammer Curl at home?

Yes, if you own a pair of dumbbells. That is the whole requirement, and it is the reason this one travels well between a home setup and a gym floor.

How many sets and reps of the Cross-Body Hammer Curl should I do?

Three to four sets of 10 to 15 reps. Isolation work responds to reps and a controlled tempo rather than load, so stop each set a rep or two short of failure and keep the weight honest.

What are good alternatives to the Cross-Body Hammer Curl?

Cable Bar Curl, Close-Grip Barbell Curl, and Kettlebell Curl train the same primary muscles as the Cross-Body Hammer Curl. Pick whichever one suits the equipment in front of you.