Glossary beginning with R

A chemical technique of replacing an atom in a molecule with a radioactive atom (usually of the same type) so that the movement of the molecule can be tracked in the body

The "gold standard" form of scientific trial in which each participant is assigned through a randomised procedure to either an active treatment or placebo

Recommended Daily Allowance or RDA; the daily amount of a nutrient required to produce health and prevent deficiency diseases

A well-planned activity that matches the situational needs of an athlete in rest and results in regaining an optimal performance state

The maximal amount of work that can be performed for a given number of repetitions. For example, 1RM is the most weight that can be lifted once. 8RM is the most weight that can be lifted 8 times consecutively

Any form of training that involves an action performed against resistance

Ratio of carbon dioxide produced to oxygen consumed

The amount of energy expended by the body in maintaining vital processes, eg respiration, circulation and digestion