Britt Hertz attempts to perform high-level gymnastics maneuvers while fully submerged in a deep pool.

Add Yahoo as a preferred source to see more of our stories on Google. A man attempted an unusual underwater barbell workout in a swimming pool in China. Filmed on March 23, the slow and controlled ...

A man attempted an unusual underwater barbell workout in a swimming pool in China. Filmed on March 23, the slow and controlled movements highlighted the effort required to lift weights beneath the ...