Calisthenics The word calisthenics comes from the Greek words kallos (beauty) and sthenos (strength). It is a form of street workout which aim is building up strength and flexibility doing gross motor movements such as pushing, pulling, lunging, and lifting using little or no equipment. I have been using this method, since I was at university, to improve my general physical condition. Providing solid foundations for specific sports that I usually play, such as judo or running. This method is highly versatile because almost no equipment is needed. Therefore, you don't have to pay for a gym and you can exercise wherever you are, even in your hotel room if it's freezing outside. Furthermore, public street workout sites have been installed in public squares, parks, and big avenues around the world. Thanks for reading and correcting my entry.