Health & Fitness Expos
and Fitness Glossary
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Abdomen or “abs” - The area of the body between the
pelvic bones and the diaphragm.
- The lateral movement of a leg or arm away
from the axis of the body.
Abductors - Muscles that on contraction draw a part
away from the axis of the body.
Absolute Strength - The most force a muscle can produce
in a single voluntary effort, no matter the rate of
Accommodating Resistance - Increasing resistance as
lifters force increases through range of motion.
- Developing characteristics of aging
through sedentary living or immobility.
Active Stretch - A stretch where you assume and hold a
position with no assistance.
Adduction - The movement of a leg or arm toward the
axis of the body.
Adductors - Muscles that draw a part toward the medial
line of the body.
ADP (Adenosine Diphospahate) - A compound of adenosine
containing two phosphoric acid groups. It is used to
synthesize ATP with the energy released in cell
Aerobic capacity - The ability of the body to process
Aerobic - Living in the presence of oxygen.
Agonist - The contracting muscle as distinguished from
the relaxing muscle.
Amino Acids - The building blocks of proteins and the
end products of protein digestion. There are 20
essential amino acids for human metabolism and growth.
Anabolic Steroid - Hormones that promote bone and
Anaerobic Threshold - The level of exercise intensity
where the body begins working your muscles without
Anaerobic - Able to live without oxygen.
Angina Pectoris - An inadequate blood flow and
oxygenation to heart muscle which causes a pressure or
a pain in the chest.
Antagonist - That which counteracts the action of
something else, i.e. a drug or muscle.
Antioxidants - Substances that may protect cells from
the damaging effects of oxygen radicals and highly
Arm Blaster - Exercise equipment which maximizes your
biceps and triceps workouts by allowing maximum
stability and isolation.
Arteriosclerosis - Thickening of the walls of the
arterioles with loss of elasticity.
Asana - A sitting position or posture used in yoga and
Assimilation - Nutrients are absorbed into your body
ATP - A phosphate molecule which is used to release
energy for work within the body.
Atrophy - The decrease in size of a normally developed
tissue or organ.
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