Final answer:
The process of slowly increasing exercise amount for continual improvement is called progressive overload.
Step-by-step explanation:
The process of slowly increasing the exercise amount in order to keep making improvements is called progressive overload. This principle is important for effective strength training and muscle growth. For example, if you continue weight lifting without increasing the weight of the load, your muscles won't continue to grow. To make progress, you need to gradually increase the intensity of your workouts by adding more weight or increasing the difficulty of the exercises.