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.

E

Easy Set - Exercise not close to maximum effort, as in a warm-up.

Eccentric - The lowering phase of an exercise, when the muscle lengthens. For example, lowering the weight to your chest during the bench press is the eccentric, or "negative," portion of the exercise.

Energy - Energy is a term used by humans to describe intangible, but perceptible, variations in emotional and physical stamina and motivation.

Endurance - the act of sustaining prolonged stressful effort.

Essential fatty acids (EFAs) - Necessary fats needed for proper growth, maintenance, and functioning of the body. EFAs include linoleic and linolenic acid and are necessary for the normal functioning of the reproductive and endocrine systems and the breaking up of cholesterol deposits on arterial walls.

Estrogen - The female sex hormones produced by the ovaries which are responsible for the development of female sex characteristics. A small amount of these hormones are also produced in the male when testosterone is converted to estrogen in fat cells.

Extension - A term referring to an exercise in which a body part goes from a bent to a straight position.