The Russian Twist is a popular core exercise that targets the abdominal muscles, particularly the obliques. To perform this exercise, sit on the floor with your knees bent and feet flat. Lean back slightly while keeping your back straight, and hold a weight or medicine ball with both hands. While maintaining your balance, rotate your torso to the right, then to the left, tapping the weight on the ground beside you each time. This movement helps improve core strength, stability, and rotational power, making it beneficial for athletes and fitness enthusiasts alike.