Bodybuilding is the use of
progressive resistance exercise to control and develop one's
musculature. An individual who engages in this activity is referred to as a bodybuilder. In competitive amateur and
professional bodybuilding, bodybuilders appear in lineups doing specified poses, and later perform individual posing routines, for a panel of
judges who rank competitors based on criteria such as symmetry, muscularity and conditioning. Bodybuilders prepare for competition through a combination of dehydration,
fat loss,
oils, and
tanning (or
tanning lotions) which make their muscular definition more distinct. Well-known bodybuilders include
Charles Atlas,
Steve Reeves,
Reg Park,
Arnold Schwarzenegger and
Lou Ferrigno.