Dumbbell Lying Pronation

Muscles worked

Main muscles
- Pronator Teres
What it is
This exercise strengthens your forearms by isolating their rotational muscles. Performed with a dumbbell, it challenges your grip and builds control through a controlled forearm movement. You will target the muscles responsible for forearm rotation and stability.
Technique tips
- Ensure your upper arm is parallel to the floor and perpendicular to your torso at the start.
- Maintain a strict 90-degree elbow bend throughout the rotation.
- Exhale as you externally rotate the forearm until it is parallel to the floor.
- Pause briefly at the top of the movement to maximize contraction.
- Control the dumbbell through the entire range of motion, both up and down.
- Rest your head comfortably on your other hand to maintain focus.
How to track your progress
Log the weight and reps of each set. Straddly turns every set into an estimated one-rep max, so a heavier single and a strong set of eight both count as progress, and it flags a personal record the moment you beat your best.