Physical fitness is the horse's physical state of overall health and well-being and, more specifically, the ability to perform aspects of sports and daily activities. The physical fitness is represented as a green bar on the right side of the Training tab, on the horse's profile.
Proper physical fitness can be achieved by training a horse via the Training tab. For each training unit, the physical fitness will increase by a percentage ranging from +2% up to +23%. The exact size of the boost depends on your choice of terrain and duration. If you own a roundpen, you can select this as a terrain to exercise the horse. Its fitness will receive a boost ranging from +4% to +7% depending on the chosen duration.
Physical fitness is important. It is one of the aspects counting toward competition scores. The better the physical fitness of a horse, the better it will perform in competitions.