Muscle tissue and cells have time to repair.

To reach higher levels of fitness an athlete must train harder (e.g. from walking to running).

Changes made to the program are gradual to avoid injury

Muscular strength is improved by matching the actions of the game/event.

After six weeks, cycling changes to 45 minutes instead of 30.

Body works harder than normal.

Exercise matches the actions of the sport.

Different exercises are included in the routine that are also applicable for the desired outcome of the training.

A person usually trains three times per week but changes to training four times.

Exercise becomes more intense by gradually increasing the intensity and duration