Joseph Lux was a French gymnast

Gymnastics

Gymnastics is a sport involving performance of exercises requiring physical strength, flexibility, agility, coordination, and balance. Internationally, all of the gymnastic sports are governed by the Fédération Internationale de Gymnastique with each country having its own national governing body...

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He took part in the first gymnastics World Championships which took place in 1903, where he took gold in the team competition and silver overall, behind Joseph Martinez. He also took gold in the pommel horse

Pommel horse

The pommel horse is an artistic gymnastics apparatus. Traditionally, it is used by only male gymnasts. Originally made of a metal frame with a wooden body and a leather cover, modern pommel horses have a metal body covered with foam rubber and leather, with plastic handles .- History :The pommel...

 and silver in the rings. He took part again in 1907, when he took silver in the team competition and gold in the individual parallel bars.