Russian twists, an effective core exercise, can help tone abs and lose weight while sitting. Proper form and controlled movements are essential to avoid injury and maximize benefits. Start with feet grounded, focus on torso rotation, and extend arms to create leverage. Russian twists, an effective core exercise, can help tone abs and lose weight while sitting. Proper form and controlled movements are essential to avoid injury and maximize benefits. Start with feet grounded, focus on torso rotation, and extend arms to create leverage. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle