A great sport where you absolutely must build strength while retaining flexibility and endurance. All-round fitness excellence, then. Maybe just a bit of showing off, first:   Now to work:

The finest sport for building strength while keeping flexible, and for building endurance through regular training and development. Accessible at an early age (like 4-5!), peaking around 20 and (with regular training) keeping some skills going as long as you like... Gymnasts of all ages today: successes (and some fails), some basic training... admire, enjoy and be determined to raise your own fitness level!

 The greatest sport for fitness enthusiasts!