CYBEX VR2 Owner's And Service Manual page 25

Cybex VR2 Owner's Manual
Plantar - anatomical term referring to the sole or bottom.
Plantarflexion - movement of the foot down in the sagittal plane; movement away from the
leg.
Posterior - anatomical term meaning toward the back. Opposite of anterior.
Potential Energy - energy by virtue of position.
Power - the product of work divided by time. It is the time required to move a distance that
was produced by the force.
Prime Mover - (agonist) a muscle that is mechanically optimal to produce a specific motion
at a joint. There can be more than one prime mover for a particular motion, and a specific
muscle can be a prime mover for more than one motion at a joint.
Progressive Resistance - overloading a muscle or muscle group consistently throughout the
duration of a weight-resistance program.
Pronation - a triplanar motion at the subtalar joint consisting of abduction, depression and
eversion, resulting in lowering of the longitudinal arch of the foot. Position of the forearm with
the palm facing down.
Protein - an essential nutrient made up of amino acids. The building block for tissues.
Proximal - towards the attached end of the limb or origin.
Range of Motion (ROM) - the amount of motion available to a joint (measured in degrees)
within the anatomical limits of the joint structure. Limits to range of motion also include
physiological, biomechanical, and neural. ROM can be classified as Passive (movement
produced via a force outside the limb), Active (movement produced by muscles within the
limb) or Resisted (movement challenged under additional load).
Reciprocal Inhibition - contraction of agonist causes relaxation of antagonist.
Repetition Maximum (RM) - the maximum load that a muscle or muscle group can lift for
given number of repetitions before fatiguing. Example, an eight-RM load is the maximum load
that can be lifted eight times.
Rotary Motion - (radial or angular) the movement of an object around a fixed axis in a curved
path.
S.A.I.D. Principle - Specific Adaptation to Imposed Demand. A muscle will gain strength in
the specific ranges of motion and speeds in which it is trained.
Sagittal Plane - Imaginary line that divides the body, or any of its parts, into right and left
sections.
General
Exercise
Guidelines
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