Making use of upper body and core strength, fit guys show off their planches and handstands. Clearly, the younger you start, the better.  

Making use of their fitness... strictly no posing today! Running, climbing, cycling, tennis... and generally having fun. This could be you after a bit of routine firness training...   ...and from 1896 (with a few mis-steps, but it is a rehearsal...): Something slightly weird to finish:  ...they are either Indian soldiers or kushti wrestlers, but what that's for is anyone's guess!