Dumbbell Russian Twist

A seated rotational core exercise with a dumbbell — trains the obliques and abs through controlled twisting under load.

Core Dumbbell Strength

Video

Silent, looping, the whole movement.

Body map

FRONT

BACK

Primary

Obliques

Secondary

none

Step by step

Sit on the floor with the knees bent and hold a single dumbbell with both hands at the chest.
Lean the torso back to about a 45 degree angle and lift both feet a few inches off the floor.
Brace the core hard and stack the ribs over the hips, with the chest lifted and the back flat.
Rotate the dumbbell across the body to one side until it taps the floor next to your hip.
Pause briefly at the side with the obliques engaged, then rotate to the other side under control.
Continue alternating side to side for the full set, keeping the feet lifted and the core braced.

Log your sets. After a few weeks you will see whether it is moving. Free.