Begin by lying flat on your back with your knees bent and feet flat on the floor, holding a dumbbell with both hands extended straight above your chest.
Bend your core and lift your upper body off the floor, raising the dumbbell towards the ceiling as high as possible. As you crunch, twist your torso to the right, bringing the dumbbell towards your right side.
Lower your upper body back to the floor with control, maintaining your arms extended above your chest. Repeat the movement, this time twisting to the left. Continue alternating sides for the desired number of repetitions.
Form tips
Keep your arms straight and avoid bending your elbows during the movement.
Use a weight that allows for proper form and control.
Exhale as you twist up and inhale as you lower down.