Health / Fitness Glossary

Lipids: All fats and fatty acids.

Lipoprotein: Fat carrying protein in the blood.

Load: The amount of electrical or mechanical power required to operate a machine, usually the power required to hold you up while climbing or move you on the treadmill while running.

Lock Out: Partial repetition of an exercise by pushing the weight through only last few inches of movement.

Low Density Lipoprotein (LDL): A core of cholesterol surrounded by protein, often referred to as bad cholesterol.

Low-Impact Aerobics: A traditional dance-inspired routine in which you always have one foot on the floor — you don’t do any jumping or hopping. High/low combines the two types of routines.

Lower Abs: Abbreviation for abdominal muscles below the navel.

Lumbar: Lower region of you spine, vertebrates L1 to L5. Used for bending and extending the body forward and back, with the aid of the abdominal and erector spinae muscles.

Marathon: An organized 26.2-mile race for runners and walkers.

Max: Maximum effort during a workout for one repetition of an exercise.

Maximum Heart Rate: The maximum number of times your heart should beat in a minute without dangerously overexerting yourself.

Medicine Ball: A heavy leather or rubber-covered ball usually six to twelve inches in diameter. Medicine balls are a common piece of exercise equipment used for various exercises.

Meditation: A mental process involving focused attention, or calm awareness, which is also called mindfulness.

Met: The expression of the rate of work (power output) for the human body at rest, or a metabolic equivalent. One MET is approximately equal to a person's metabolism when seated and relaxed.

Metabolism: The sum of the total chemical reactions in the body at rest or during exercise.

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

Military Press: A weight training intended for the development of shoulder muscle. Lift the barbell to shoulder height and then lift overhead. It can be in standing or sitting position.

Mountain Bike: A fat-tire outdoors bicycle with upright handlebars that is built to withstand rough terrain.

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