This is a good exercise for the oblique muscles.
Sit on the end of the bench with your feet firmly on the floor.
Slowly twist at the waist from one side to the other, keeping your back straight and head up.
Variations are standing or holding a dumbbell close to the chest.
Avoid twisting too far round, aim for small movements.
BEGINNERS
Aim for 8 turns each side with a light weight. Repeat twice.
INTERMEDIATE
Aim for 10 turns each side with a medium weight. Repeat twice.
ADVANCED
Aim for 15+ turns each side with a suitable weight. Repeat twice.
Tutorial provided by netfit
Sit on the end of the bench with your feet firmly on the floor.
Slowly twist at the waist from one side to the other, keeping your back straight and head up.
Variations are standing or holding a dumbbell close to the chest.
Avoid twisting too far round, aim for small movements.

BEGINNERS
Aim for 8 turns each side with a light weight. Repeat twice.
INTERMEDIATE
Aim for 10 turns each side with a medium weight. Repeat twice.
ADVANCED
Aim for 15+ turns each side with a suitable weight. Repeat twice.
Tutorial provided by netfit