Progressive loading is a training principle used in physical fitness that involves gradually increasing the amount of weight or resistance during workouts. This method helps to enhance strength, endurance, and muscle growth by challenging the body over time. By systematically increasing the load, individuals can avoid plateaus and continue making progress in their fitness journey. This approach can be applied to various forms of exercise, including weightlifting, bodyweight exercises, and resistance training. It is essential for individuals to monitor their performance and adjust the load appropriately to prevent injury and ensure optimal results.