Fitness Glossary
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Eccentric (lengthening) Action
The force produced by the muscle is less than the external resistance, but it is causing the joint movement to occur more slowly than the external resistance would tend to make the limb move.
Edema
Accumulation of abnormal quantities of fluid in spaces between the cells of the body. Edema can accumulate in almost any location in the body.
Efferent Neuron
Conducts impulses from the CNS to the effector organ (E.G., motor neuron).
Efficacy
The power to produce and effect.
Electrolyte
A charged ion capable of conducting electrical current when in solutions.
Electromyography (EMG)
The recording of the electrical activity in the muscle; recording the action potentials in a muscle or in muscle groups.
Endomysium
The thin connective tissue surrounding each muscle cell.
Energy
The potential or capacity to do work.
Epimysium
The sheath of fibrous connective tissue surrounding a muscle.
Extension
Dorsal exercises or trunk movements performed in the sagittal plane around a transverse axis.
External Rotation
Rotation occurring away from midline; outward rotation.