This page is designed as a one-stop-shop for all the definitions commonly used in the fitness industry. Got an acronym you don't recognise? A term you don't understand? Well have a squiz here, this will be an ever growing reference list! Please note, too, that in an industry full of jargon there might be differing definitions for some terms. Just look at exercise names! A Press, Shoulder Press, Overhead Press, Barbell Press, Standing Press and Military Press might all be exactly the same exercise, or be completely different depending on who you ask. Which is right and which is wrong doesn't really matter, so long as all parties involved are using the same definitions.
And just before we start, if you you have come across a term I don't have listed here, please let me know via the Contact section to the right on screen (or directly below if you're on mobile) and I will update the list.
AMRAP
As Many Reps As Possible - A set taken to failure, often as a way of benchmarking strength, or to accumulate fatigue.
BB
Benchmark Set
DB
e1RM
EMOM
Every Minute On the Minute - To start a set by the clock, for a determined amount of time. e.g. 8 sets EMOM is 8 sets, with a set performed every minute on the minute.
Failure
The point at which you cannot perform any more repetitions. Can be either technical (where a technical standard can no longer be maintained) or complete (where you simply cannot perform any more repetitions).
Fatigue
A general and nebulous term used to describe the potentially multi-factorial decrease in performance during and after a bout of training. Can occur acutely (e.g. between sets due to depleted energy substrates), or cumulatively (over the course of a training program because it's unrealistic to expect you're fully recovered before training again).
KB
Repetition/s
To perform an exercise once, or numerous times with no significant break in between. e.g. 1 air squat repetition, or 5 air squat repetitions.
Rest Period
The time spent recovering between sets. Often timed, but not always.
RM
RIR
RPE
Rate of Perceived Exertion - A subjective quantification of prescription for the difficulty of a set. Written as "@x" or "RPEx". E.G. @8 and RPE8 =
Set
The grouping of repetitions, with a significant break in between. e.g. 1 set of 5 repetitions, or 3 sets of 8 repetitions.