In a sports situation, the Sigma Test is one of the most effective methods of evaluating your organic and attentive abilities. When it comes to these sports, it is not enough to have excellent physical performance. You also need to pay attention to the quality of your performance when you are under stress.

A study conducted by Prof. Buzzelli has shown that attention has an energy cost, which is to say, it consumes energy that could be used for physical performance in the future. It has been called the energy cost of attention by Prof. Buzzelli as a result of this phenomenon.