The term fitness has two different meanings, but related to each other. The first definition that we can give of fitness is one that refers to the general state of well-being and physical health achieved not only from the development of a healthy life, but also and mainly, from continued and sustained exercise over time.

The second meaning of the word is the one that indicates the type of physical activities normally understood as 'fitness' and that are generally carried out in specific sports spaces.

The word fitness comes from the English language and means "well-being" (fit = healthy, healthy).