Fitness Terms

Fitness Equipment Glossary of Terms


Treadmill Belt The moving surface of the treadmill that travels around a front and rear roller.  The treadmill belt is made of rubber and if it is a high quality treadmill belt will have a cotton back.  This will eliminate friction against the treadmill deck.  Standard deck sizes of commercial treadmills will be 20″ x 60″. The size can vary.

AC Motor – An Alternating Current electric motor that utilizes a power source where the voltage changes or alternates in direction and magnitude.

AMT – Adaptive Motion Trainer.  A proprietary product developed by Precor that is designed to adapt to an individual users motion.

DC Motor – Direct Current electric motor that has a power source in which the voltage is constant and the current travels in only one direction such as in a car battery.

EFX – Elliptical Fitness X-Trainer.  A registered term developed by Precor to describe the cardiovascular equipment now in the fitness equipment category known as Ellipticals or Cross Trainers.

Lifepulse® – A trademarked term utilized by Life Fitness to describe their Heart Rate Monitoring System– A trademarked term utilized by Life Fitness to describe the shock absorbing system on their treadmills.  The Lifespring® is constructed of an ultraviolet cured polyurethane elastomer.

Link6® – A trademarked term utilized by Life Fitness to describe the drive system of their elliptical fitness cross trainers.

Progressive Resistance Exercise – Also referred to as PRE.  A comprehensive term that covers a wide variety of muscular strength or endurance training where a progressive overload is emphasized.

Relief Interval – In an interval training program, the time between work intervals as well as between sets.

Set – In an interval training or weight lifting program, a group of work and relief intervals.

Second Wind –  A phenomenon characterized by a sudden transition from an ill-defined feeling of distress or fatigue during the early portion of prolonged exercise to a more comfortable, less stressful feeling later in the exercise.

Spinning® – This is a registered trademark by Madd Dogg Athletics, Inc who founded the group exercise phenomena known as Indoor Group Cycling.  Mad Dogg Athletics, Inc  is owned by Jonathan Goldberg (Johnny G), who started the concept in the 1980’s, and John Baudhuin.

Sprint Training – A type of training in which a system of maximal sprints are repeated.

Strength – The maximal force or torque a muscle or a group of muscles can generate at a specific or determined velocity.

Torque – The effectiveness of a force to overcome the rotational inertia of an object.  The product of force and the perpendicular distance from the line of action of the force to the axis of rotation.

Total Body Workout – These are workouts that involve all of the body’s major muscle groups at once.

Watt – A unit of power expressed as foot-pounds per minute (ft-lb/min)

Work – Force expressed through a displacement but with no limitation on time. (Work = Force x Distance)

Work Interval – Portion of an interval training program consisting of the work effort.

Lifespring® – A trademarked term utilized by Life Fitness to describe the shock absorbing system on their treadmills.  The Lifespringtm is constructed of an ultraviolet cured polyurethane elastomer.

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