1RM - One-repetition maximum in weight training is the maximum amount of weight that a person can possibly lift for one repetition.

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AMRAP - AMRAP stands for "as many reps as possible" or "as many rounds as possible," depending on what you're doing in the particular workout.

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Circuits - Circuit training is a combination of six or more exercises performed with short rest periods between them for either a set number of repetitions or a prescribed amount of time.

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Concentric - The concentric portion of a movement occurs when the tension in the muscle increases and the muscle fibers shorten or contract.

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Drop Set - A drop set is an advanced resistance training technique in which you focus on completing a set until failure - or the inability to do another repetition.

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EMOM - EMOM workouts are an acronym for every minute on the minute. A form of interval training, the goal with this workout is to complete a certain number of reps of a particular exercise within 60 seconds, and to use whatever time is left in that minute to rest.

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Eccentric - An eccentric contraction is the motion of an active muscle while it is lengthening under load.

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HIIT - High-intensity interval training is a form of interval training, a cardiovascular exercise strategy alternating short periods of intense anaerobic exercise with less intense recovery periods, until too exhausted to continue.

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Intensity - Intensity describes the difficulty of an exercise, typically based on the amount of weight you lift.

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Isometric - An isometric exercise is a form of exercise involving the static contraction of a muscle without any visible movement in the angle of the joint.

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RIR - Reps in Reserve, meaning how many reps you had left after a certain set. If you did 8 of an exercise, but think you could have done 2 more if you were forced to, then you had 2 reps in reserve, or 2RIR. Sometimes your coach will give you an exercise and tell you to go to a certain RIR, so that is the reps in reserve they are looking for.

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RPE - In sports and particularly exercise testing, the rating of perceived exertion, as measured by the Borg rating of perceived exertion scale, is a frequently used quantitative measure of perceived exertion during physical activity.

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Superset - The concept of a superset is to perform 2 exercises back to back, followed by a short rest.

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TUT - Time under tension (TUT) refers to the amount of time a muscle is held under tension or strain during an exercise set.

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Tabata - The Tabata format is as follows: 20 seconds of a very high intensity exercise (e.g., sprints, burpees, squat jumps, etc.) 10 seconds of rest.

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Tempo - Tempo is a way to control the rate at which an exercise is performed. It refers to how much time the muscle spends under tension in the isometric, eccentric, and concentric portions of the exercise.

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Volume - In weight training, volume is the term used to describe how much work you do, such as the number of repetitions (reps) you perform of an exercise.

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" x " = Sets x Reps - if you see 3 x 5 in your workout, your coach is looking for 3 sets, each containing 5 repititions.