The dumbbell close grip hammer curl is a biceps isolation exercise performed standing with two dumbbells held together in a neutral grip and curled up the midline to load the brachialis. Unlike the standardhammer curl, where each dumbbell travels beside the hip, here the two handles stay pressed together in front of the body, so the elbows sit slightly forward and the long head of the biceps loses its stretched position. The touching plates also expose any uneven pull between arms. Lifters use it as an arm-day accessory after their heavier supinated curls.
What Muscles Does the Dumbbell Close Grip Hammer Curl Work?
- Primary: Brachialis, biceps brachii (short head)
- Secondary: Brachioradialis (forearm), wrist flexors
- Tertiary: Anterior deltoid, rectus abdominis, erector spinae
How Do You Set Up for the Dumbbell Close Grip Hammer Curl?
Pick a pair lighter than your standard hammer curl load. Stand with your feet hip-width apart, knees soft, and hold a dumbbell in each hand with the palms facing each other. Bring the hands together in front of your thighs so the inner plates touch along their full length. Pull your shoulders down and back, brace your abs, and let the arms hang straight with the elbows resting just in front of your ribs.
How Do You Perform the Dumbbell Close Grip Hammer Curl?
- Press the two dumbbells together with light inward pressure so the plates stay in contact before the arms bend.
- Curl both dumbbells up the midline, bending at the elbows and keeping the thumbs pointing at the ceiling.
- Stop when the dumbbell heads reach the top of your chest and the forearms are just past vertical, plates still touching.
- Squeeze for one count at the top, pressing the dumbbells into each other.
- Lower along the same line for a slow three-count until the arms are straight in front of the thighs.
- Reset the shoulders down and confirm the plates are still touching before the next rep.
What Are the Key Form Cues?
- Glue the plates together: keep constant inward pressure between the dumbbells from the bottom to the top of every rep, so the stronger arm cannot race ahead.
- Elbows point at the floor: let the elbows sit a fist's width in front of the ribs, but keep them aimed down as the weights rise.
- Drive the knuckles toward the chin rather than toward the shoulders.
- Feel the outside of the upper arm tighten at the top, where the brachialis takes over from the biceps.
- Let the lowering take longer than the lift, with the plates still touching at the bottom.
What Are the Most Common Mistakes?
- Loading the pair like a normal hammer curl: the dumbbells separate on the way up and the hips swing to help, so drop 5 pounds a hand until the plates stay together.
- Letting the dumbbells drift apart at the top: the arms slide back into a standard hammer path and the midline squeeze is lost, so keep pressing the plates inward as you curl.
- Shrugging the shoulders as the weights rise: the upper traps lift the dumbbells and the biceps stop at half range, so pin the shoulder blades down.
- Curling the elbows up to shoulder height: the front delts carry the weight over the last third, so stop the elbows a fist in front of the ribs.
- Leaning back to finish the rep: the lumbar spine extends under the load, so keep the ribs stacked over the hips.
What Are the Best Dumbbell Close Grip Hammer Curl Variations?
- Seated close grip hammer curl: sitting on a bench removes the hip swing, for lifters who cannot keep the plates together standing.
- Paused close grip hammer curl: a two-second top squeeze raises time under tension.
- Cross Body Hammer Curl: curling each dumbbell toward the opposite shoulder lengthens the brachialis path.
- Single dumbbell two-hand hammer curl: both hands hold one dumbbell vertically by its head, the same midline path with one implement.
- Close grip kettlebell horn curl: one kettlebell held by the horns replaces the pair for gyms without matched dumbbells.
How Do You Progress the Dumbbell Close Grip Hammer Curl?
- Move up 5 pounds a hand once every set finishes with the plates still touching and the elbows fixed.
- Build from 10 reps to 15 per set before each weight jump.
- Add a fourth set once three sets no longer fatigue the outside of the upper arm.
- Slow the lowering to a four-count, or add a two-second squeeze at the top, before the next weight increase.
How Should You Program the Dumbbell Close Grip Hammer Curl?
Place the dumbbell close grip hammer curl late in an arm or pull session, after your rows and heavier supinated curls, once or twice a week. Work 3 sets of 10 to 15 reps with 45 to 60 seconds of rest, keeping the load one where the plates stay together. Pair it with a rope pushdown in a superset so the elbow flexors rest while the triceps work.