The principle of progression in resistance training indicates that:

The principle of progression in resistance training emphasizes that the demands placed on the body should continually increase over time to improve strength, endurance, and overall fitness. This concept is rooted in the body's adaptive nature; if the workload does not increase appropriately, the body will plateau, and no further physical gains will be achieved.

Progression can be achieved in several ways, including increasing the weight lifted, altering the number of repetitions or sets, shortening rest periods, or changing the exercise itself to introduce a new challenge. This structured approach allows for systematic improvements in performance while minimizing the risk of injury.

By continuously enhancing the intensity or complexity of workouts, clients are more likely to experience ongoing gains in their physical capabilities. This principle is crucial for long-term success in resistance training programs, distinguishing effective training regimens from those that result in stagnation or overtraining.