# Glossary

**In alphabetical order ...
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**Aerobic**: energy metabolism of substrates with consumption of oxygen.

**Anaerobic**: energy metabolism of substrates without consumption of oxygen.

**Fitness**: Can be used as a general expression for the overall physical condition of the body. Sometimes fitness is also used as a reference to maximal oxygen uptake in millilitres pr. minute related to the bodyweight in kilograms (ml/kg/min). This is also called relative VO_{2}max.

**Heart rate reserve**: Describes the interval between resting heart rate and maximal heart rate. This interval is often used as the basis for calculating exercise intensity. Resting heart rate being 0 % intensity and maximal heart rate being 100 % intensity.

**BIA** Bioelectrical impedance analysis

**BMI** Body mass index

**BMR** Basal metabolic rate

**BP** Blood pressure

**Lean body mass**: Total body weight minus the weight of all the fat in the body. Can be calculated as: total bodyweight x (100% - fat%).

**Maximal heart rate**: Indicates the individual maximal attainable heart rate. Maximal heart rate drops with age and an educated guess can be based on the formula 220 - age. There is however a large individual variation and 5 % of a population will deviate more than 20 beats per minute from this estimate.

**METS:** One MET represents an energy expenditure equivalent to resting energy expenditure. The standard value for 1 MET is 3.5 ml O2 pr. kg body weight.

**PAL** Physical activity level

**RDA** Recommended dietary allowance

**Relative VO _{2}max: ** The maximal oxygen uptake in millilitres pr. minute related to the bodyweight in kilograms (ml/kg/min). On this site this is also referred to as fitness.

**Rep** Repetition

**RER** Respiratory exchange ratio

**RM**: Repetition maximum. The heaviest weight that can be lifted a specified number of times. 1 RM is the heaviest weight that can be lifted one time in good form. 6 RM is the heaviest weight that can be lifted 6 times.

**RMR** Resting metabolic rate

**ROM** Range of motion

**RPE** Rating of perceived exertion

**VO _{2}max**: The maximal oxygen uptake measured in litres pr. minute.