Mason Twist/ Weighted Russian
First, place an exercise mat on the floor, then sit on it, making sure your upper body is straight and your legs are fully extended.
Next, grip a weight plate with both hands and hold it in front of your abdomen so that your arms are slightly bent, and then cross your ankles and begin to raise them slightly off the floor. You should bend your knees towards you and lean back 15 degrees to balance your body.
Next, slowly turn your torso to the left, attempting to touch the plate on the floor, and remember to exhale while exercising. After finishing, return to the starting position while breathing in and out.