What does the Inverted-U Model illustrate about energy activation?

The Inverted-U Model illustrates that there is an optimal level of energy activation for performance; specifically, performance improves as energy activation increases, but only to a certain point. Beyond that optimal point, further increases in energy can lead to a decline in performance. This model demonstrates that both under-arousal and over-arousal can negatively affect an individual's ability to perform tasks effectively. Therefore, the optimal performance is achieved when energy activation is at a balanced level rather than falling on either end of the spectrum. Understanding this model is crucial for training and managing energy levels to enhance performance in various situations.