True Fitness Z9, Z8 manual 101

Appendix E - Glossary

Interval workouts are popular because they are superior training for sports activities, which almost always involve highly varying exer- cise intensities. Interval workouts are not optimal for weight loss or weight control, since steady-state exercise is most efficient for maxi- mal total energy expended for a given effort.

METs: unit of energy expenditure used for exercise prescriptions, defined as the current energy expenditure rate divided by the basal metabolic rate (BMR). In the case of METs, BMR is defined as a VO2 of 3.5, meaning it varies directly with body weight. This is incorrect, as BMR varies with the 2/3-root of body weight. See T- MET.

oxygen uptake: also referred to as VO2, the rate of consumption of oxygen, usually expressed as a rate per unit of body weight, or mil- liliters per kilogram per minute, or ml/kg/min, or ml/kg*min-1. This is the best way to accurately measure energy expenditure during aerobic exercise.

RJ-45:an 8-conductor locking connector used for the CSAFE sys- tem, also commonly used for Ethernet cables (where only four wires are used). The RJ-45 is typically wired using the EIA/TIA-568 twist- ed-pair wiring standard.

rpm: revolutions per minute, the most common unit of measure of angular motion in the non-scientific world. The International System (SI) unit that is more useful is radians per second, which is equal to 0.1047 rpm.

segment, work and rest: same as work and rest interval. See interval training.

speed, estimated running: applies the measured energy expenditure to walking and running equations, producing a more friendly or familiar speed feedback.

Z 8 a n d Z 9 S e r i e s Tr e a d m i l l O w n e r ' s G u i d e

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