compare and contrast the exercise principles of progression and overload.

Progression: The principle of progression states that any exercise program must be gradual, systematic and planned. This means that exercises should start at a manageable and comfortable level and progress gradually to ensure an individual is capable of completing the exercises safely and effectively. Overload: The principle of overload states that an individual should progress their exercises, so they are continually expelling more energy and effort than they were in previous workouts. This is done by gradually increasing the intensity, duration or frequency of exercise, to ensure the individual is always challenged and is not just adapting to their routine.

Progression: Progression is the concept that the body should continually increase the intensity of an exercise regimen to continue gaining the benefits. To progress, the amount of the exercise, such as the number of repetitions and sets, can be increased, weights can become heavier, rest intervals can be reduced, or more complex exercises can be used. Overload: Overload is the idea that the body should be challenged in order to gain strength and fitness. This is achieved by pushing the body beyond its comfort level and forcing it to adapt and grow. To overload, the weight, number of repetitions, or number of sets can be increased, or a more challenging exercise can be used. The main difference between progression and overload is that progression is a gradual increase in exercise intensity, while overload is a sudden increase in exercise intensity. Progression results in continual long-term gains in strength and fitness, while overload results in short-term gains that are not sustained over time.