No pain, no gain, no idea what half these terms mean.
The total amount of work performed, typically calculated as sets × reps × weight. The number coaches manipulate to make you either grow or cry.
The exercise intensity at which lactate begins accumulating faster than the body can clear it, causing that burning sensation. The invisible line between 'I can sustain this' and 'why did I sign up for this.'
Four or more exercises performed consecutively without rest, targeting the same or different muscle groups. A superset that went to graduate school and got ambitious.
A full-contact sport beloved by those who consider football padding to be for the weak, involving 80 minutes of organized chaos where grown adults chase an oval ball while legally tackling each other into the mud. It's soccer's angry older brother who went to the gym.
A siren system at Planet Fitness that sounds when someone grunts too loudly, drops weights, or otherwise exhibits behavior deemed too 'gymtimidating'—essentially a panic button for people afraid of effort sounds.
Slang for showing off your physique at the beach or pool, ideally after months of cutting and training specifically for this moment of shirtless validation.
A continuous loop of banked turns and rollers designed for bikes, skateboards, or BMX, where riders generate speed through weight shifts and body movements rather than pedaling—basically a physics playground disguised as exercise.
Repetitions performed with intentional momentum, body English, or compromised form to move weight beyond strict capability—either a legitimate advanced technique or proof you loaded too much, depending on who's watching.
In powerlifting, squatting low enough that the hip crease drops below the top of the knee, the difference between a white light and public humiliation at a meet.
An intensity technique where you perform a set to failure, rest briefly (10-15 seconds), then squeeze out more reps, repeating until your muscles send an urgent cease-and-desist letter to your brain.
A gym-goer who disproportionately emphasizes arm training over compound movements and leg day, typically found monopolizing the dumbbell rack while their chicken legs tell their own story.
A brutal 13-week Russian squat program featuring up to four squatting sessions per week with progressively heavier loads, guaranteed to either add 100 pounds to your squat or destroy your soul trying.
A training program dividing muscle groups across different days rather than full-body sessions, allowing you to absolutely destroy one body part while the others file insurance claims.
The force generation capacity of hands and forearms, limiting factor in deadlifts and the difference between holding onto heavy weight versus watching it crash to the floor in public shame.
Rate of Perceived Exertion—a subjective 1-10 scale measuring how hard you're working, allowing coaches to program training intensity while you lie to yourself about whether that was really a 7 or secretly a 5.
A medicine ball squat-and-throw exercise where you hurl a weighted ball at a target on the wall, combining the joy of squatting with the upper body aggression of assaulting vertical surfaces.
In fitness circles, this refers to the ratio of fat, muscle, bone, and water in your body—basically your body's ingredient list. It's what trainers obsess over instead of just looking at the scale, because apparently weighing 150 pounds of muscle is vastly superior to weighing 150 pounds of anything else. The buzzword that launched a thousand DEXA scans.
Anything or anyone that interferes with your fitness progress—poor sleep, stress, your friend who always suggests pizza. The imaginary saboteur of swoletopia.
A training session combining two disciplines back-to-back, typically cycling followed by running, to simulate race conditions. Named for how your legs feel when you dismount the bike.
The practice of consuming specific nutrients at strategic times relative to training to optimize performance and recovery. The fitness equivalent of believing that eating cake at midnight has fewer calories.
A state of chronic fatigue and declining performance caused by excessive training without adequate recovery. What happens when more-is-better philosophy meets biological reality.
The optimal body weight at which an athlete performs best in competition, achieved through careful manipulation of body composition. The number on the scale that justifies months of dietary suffering.
Lighter weight sets performed before working sets to prepare muscles, joints, and nervous system for heavy lifting. The part of training responsible adults do but impatient teenagers skip.
When a spotter assists so much during a lift that they're basically doing a workout themselves, transforming your heroic max attempt into a sad two-person collaboration.