Adaptation

One of the most fundamental training principles is the SAID principle. The body will produce Specific Adaptation to Imposed Demands (SAID). In short, you will apply a stimulus to the body (exercise) which causes an adaptation (physical improvement) to occur. The adaptation is simply a response to the stress of the exercise. For the adaptation to occur, the training load must be above normal or be new to the individual. When the exercise no longer presents a challenge, you will not adapt with positive improvements. When you become accustomed to a particular exercise, it is time for a change. This simple philosophy is essential for continuous improvement. When the exercise no longer contributes to improved performance, it is time to move on.