Smart Workout Diary

Dumbbell One-Arm Hammer Shoulder Press

The Dumbbell One-Arm Hammer Shoulder Press is a unilateral overhead pressing exercise performed with a dumbbell held in a neutral, palms-in grip. It primarily trains the deltoids while the triceps and core help press and stabilize the load. It supports shoulder strength, balanced side-to-side development, and overhead control.

Demonstration

Dumbbell One-Arm Hammer Shoulder Press — demonstration 1
Dumbbell One-Arm Hammer Shoulder Press — demonstration 2

Instructions

  1. Set up: Stand upright with your feet about hip-width apart and hold one dumbbell at shoulder height. Use a neutral grip, with your palm facing inward and your elbow slightly in front of your torso.
  2. Brace: Tighten your abdominal muscles, keep your ribs stacked over your pelvis, and keep your wrist straight over your forearm.
  3. Press: Exhale as you press the dumbbell upward in a controlled path until your arm is nearly straight overhead. Keep the shoulder down away from your ear and do not lean sideways.
  4. Lower: Inhale and slowly return the dumbbell to shoulder height, keeping the elbow under or slightly in front of the weight.
  5. Repeat evenly: Complete the planned repetitions, then perform the same number on the other arm. Use a load that allows steady control without back arching or shoulder discomfort.
Muscle Group
Delts
Other Muscle Groups
Triceps
Type
Strength
Mechanics
Compound
Equipment
Dumbbell
Difficulty
Intermediate

Technique tips

  1. Keep the neutral grip: Keep your palm facing inward throughout the repetition rather than rotating into a different pressing grip.
  2. Avoid compensating: Do not use a leg drive, excessive lower-back arch, or side bend to move the dumbbell.
  3. Control the range: Press only through a comfortable overhead range and lower the weight slowly; reduce the load if control is lost.
Exercise library