In order to enable comprehensive muscular and fitness training to be carried out in the home, many items of equipment are necessary. The disadvantage of this equipment lies in the fact that it takes up a great deal of space and costs a large amount of money. The fitness chair makes it possible to undertake comprehensive muscular and fitness training in a very small space. The fitness chair can also be used as a chair for normal home purposes without additional equipment. Body-building and fitness training for the home, physiotherapy and rehabilitation.