A body builder gets ready for a competition during the FIWE fitness and wellness exhibition in Warsaw, Poland, Sept. 14, 2019. The FIWE exhibition, a major fitness and wellness expo in Poland, run from Sept. 13 to 15. Cage fighting shows, arm wrestling and body building competitions will also be held during the exhibition. (Photos: Xinhua)

Body builders compete during the FIWE fitness and wellness exhibition in Warsaw, Poland, Sept. 14, 2019. The FIWE exhibition, a major fitness and wellness expo in Poland, run from Sept. 13 to 15. Cage fighting shows, arm wrestling and body building competitions will also be held during the exhibition.

Fighters are seen during the FIWE fitness and wellness exhibition in Warsaw, Poland, Sept. 14, 2019. The FIWE exhibition, a major fitness and wellness expo in Poland, run from Sept. 13 to 15. Cage fighting shows, arm wrestling and body building competitions will also be held during the exhibition.

A visitor takes part in a push-up competition during the FIWE fitness and wellness exhibition in Warsaw, Poland, Sept. 14, 2019. The FIWE exhibition, a major fitness and wellness expo in Poland, run from Sept. 13 to 15. Cage fighting shows, arm wrestling and body building competitions will also be held during the exhibition.

Visitors try out muscle regeneration equipment during the FIWE fitness and wellness exhibition in Warsaw, Poland, Sept. 14, 2019. The FIWE exhibition, a major fitness and wellness expo in Poland, run from Sept. 13 to 15. Cage fighting shows, arm wrestling and body building competitions will also be held during the exhibition.

A man takes a selfie with Polish body builder Szymon Lada during the FIWE fitness and wellness exhibition in Warsaw, Poland, Sept. 14, 2019. The FIWE exhibition, a major fitness and wellness expo in Poland, run from Sept. 13 to 15. Cage fighting shows, arm wrestling and body building competitions will also be held during the exhibition.