CYBEX FT-360S Owner's And Service Manual page 21

Cybex FT-360S Functional Trainer Owner's Manual
Eccentric Action - a muscle contraction incapable of overcoming the resistance imposed; the overall
muscle length increases.
Endurance - the ability to persist in performing some physical activity.
Energy - the capacity to perform work.
Energy (kinetic) - energy associated with motion.
Energy (potential) - energy by virtue of position.
Energy System - one of three metabolic systems involving a series of chemical reactions resulting in
the formation of waste products and the manufacture of ATP.
Eversion - movement of the sole of the foot outward; opposite of inversion.
Extension - movement at a joint, bringing two parts into or towards a straight line, increasing the angle
of the joint. Returning to anatomical position from a position of fl exion in the sagittal plane.
External Force - a push or pull on the body that arises from a source outside the body.
External Rotation - movement of the anterior surface of a segment away from the mid-line; also termed
lateral rotation.
Fast-twitch Fibers - skeletal muscle fi bers most active in short-duration, intensive exercise, e.g.,
in sprints and jumps.
Fatigue - the inability to maintain a given level of physical performance.
Flexibility - the range of movement of a specifi c joint or group of joints, infl uenced by the associated
bones and bony structures, muscles, tendons and ligaments.
Flexion - movement about a joint in which bones on either side of the joint are brought closer together,
decreasing the angle of the joint. Joint movement away from anatomical position, occurring within the
sagittal plane.
Foot-pound - the work required to move one pound of resistance one foot in distance.
Force - an interaction between two objects, in the form of a push or pull, that may or may not produce
motion, Force = mass x acceleration.
Force Angle - (FA) the angle between the action line and the lever, on the side of the joint axis.
Force Couple - concentric/eccentric contractions of opposing muscles acting to produce motion while
maintaining a relatively fi xed axis of rotation.
General Exercise
Guidelines
Page 3-5