Dumbbell Long Lever Russian Twist

Start by sitting on the floor with your knees bent and feet flat on the ground. Hold a dumbbell in both hands with your arms extended straight in front of you. Twist your torso to the right, bringing the dumbbell towards the ground, then return to the center. Repeat on the left side, twisting to the left and bringing the dumbbell towards the ground. Continue this twisting motion, alternating sides, for the desired number of repetitions. Keep your core engaged and avoid swinging your arms to generate momentum.