Use this section as a reference tool to maximize your vocabulary . We realize that some of you are more advanced bodybuilding enthusiasts have already grasped the meaning of these terms but for others, an explanation of what they mean will take your knowledge base to higher level.

O

Obliques - Muscles to either side of abdominals that rotate and flex the trunk.

Olympian - A term reserved for use when referring only to a bodybuilder who has competed in the Mr. Olympia or Ms. Olympia competitions.

Olympic Barbell - A special type of barbell used in weightlifting and power-lifting competitions, but also used by bodybuilders in heavy basic exercises such as squats, bench presses, barbell bent rows, standing barbell curls, standing barbell presses, and dead-lifts. An Olympic barbell sans collars weighs 45 pounds, and each collar weighs five pounds.

Olympic Lifting - The type of weightlifting competition contested at the Olympic Games every four years, as well as at national and international competitions each year.

Onion Skin - Slang referring to skin with very low percentage of subcutaneous fat which helps accentuate muscularity.

Overload Principle - Applying a greater load than normal to a muscle to increase its capability.