Fitness Dictionary
by Justin French








Mass - The relative size of each muscle group, or of the entire physique. As long as you also have a high degree of muscularity and good balance of physical proportions, muscle mass is a highly prized quality among competitive bodybuilders.

Medial – Refers to a position near the middle or midline.

Metabolic rate - The rate you convert energy stores into working energy in your body. In other words, it's how fast your "whole system" runs. The metabolic rate is controlled by a number of factors, including: muscle mass (the greater your muscle mass, the greater your metabolic rate), calorie intake, and exercise.

Metabolism - The use of nutrients by the body. It's the process by which sub-stances come into the body and the rate at which they are used.

Midsection - Muscles of abdominal area, including upper and lower abdominals, obliques and rectus abdominis muscles.

Military press - Pressing a barbell from upper chest upward in standing or sitting position.

Minerals - Naturally occurring, inorganic substances that are essential for human life, which play a role in many vital metabolic processes.

Muscle - Tissue consisting of fibers organized into bands or bundles that contract to cause bodily movement. Muscle fibers run in the same direction as the action they perform.

Muscle Head - Slang for someone whose life is dominated by training.

Muscle Spasm - Sudden, involuntary contraction of muscle or muscle group.

Muscle Tone - Condition in which a muscle is in a Constant yet slight state of contraction and appears firm.

Muscularity - An alternative term for "definition" or "cuts."

Myositis - Muscular soreness due to inflammation that often occurs 1-2 days after unaccustomed exercise.