No pain, no gain, no idea what half these terms mean.
In fitness terms, what your muscle does when it's actually working—shortening under tension to create movement. Not to be confused with economic contractions (your wallet getting lighter) or labor contractions (a completely different kind of pain), though all three can make you sweat profusely.
The speed at which an athlete moves, or more accurately, the speed at which they promise themselves they'll sustain before inevitably slowing down. In running, it's the delicate balance between 'I can maintain this forever' and 'why does my chest hurt.' Coaches obsess over it, runners lie about it, and fitness apps judge you for it.
The measure of how long you can keep doing something awful before your body stages a mutiny. In fitness, it's your ability to sustain prolonged physical activity; in life, it's how many Zoom meetings you can survive in one day.
A systematic planning of athletic training that divides your program into specific time blocks, each with particular goals. It's essentially meal-prepping for your muscles, but over months instead of Sundays.
Bodyweight exercises that use minimal equipment and maximal suffering to build strength and endurance through movements like push-ups, pull-ups, and various forms of self-inflicted torture. It's what people did before gym memberships existed, and what fitness influencers rediscovered and rebranded as revolutionary. The word sounds fancy, but it's really just organized sweating.
The strategic reduction of training intensity during the off-season, giving your overtaxed muscles a well-deserved break before ramping back up. Think of it as the athletic equivalent of a controlled burnout prevention program. Smart athletes detrain; broken ones just stop showing up.
A choreographed sequence of movements practiced in martial arts that looks like fighting an invisible opponent who's really bad at dodging. These pre-arranged forms teach technique, balance, and muscle memory while making practitioners feel like they're in a kung fu movie. Performing kata at tournaments involves being judged on precision and power, which is martial arts' way of combining dance recital anxiety with actual combat training.
Low-intensity exercise performed between harder training sessions to promote blood flow and healing without adding stress. The art of doing something while technically doing nothing.
Practicing the ability to safely slow down momentum, crucial for injury prevention in sports requiring direction changes. It's teaching your body to hit the brakes effectively, because acceleration without deceleration is just falling with style.
Resting Metabolic Rate: the number of calories your body burns just existing in a chair, doing nothing but maintaining life functions. It's the baseline caloric cost of your meat prison before you add actual activity, typically measured first thing in the morning.
A subjective scale (usually 1-10 or 6-20) used to measure how hard you feel you're working during exercise. Science's way of asking 'but how do you *feel* about that?' to your cardiovascular system.
A muscle contraction where the muscle lengthens while under tension, like lowering a weight. The phase responsible for approximately 90% of your next-day soreness.
Euphemistic slang for anabolic steroids and performance-enhancing drugs. When someone says they're 'on gear,' they're not talking about their transmission.
Exercises focused on improving joint range of motion and movement quality, typically involving controlled stretches and movement patterns. It's what you should be doing instead of scrolling Instagram between sets.
The highest heart rate training zone at 90-100% of maximum heart rate, reserved for short bursts of maximum effort. Where your lungs burn, your legs scream, and your Garmin judges you.
Your aerobic system and cardiovascular capacity—the unglamorous base fitness that determines whether you can sustain any athletic effort. Slow to build, embarrassing to lack.
The ability to actively move a joint through its full range of motion with control. Not to be confused with flexibility, which is just passive range and doesn't require you to control anything.
Every Minute On the Minute—complete a set amount of work at the start of each minute, resting whatever time remains. A workout format where the clock is both timer and tormentor.
The moderate-intensity training zone between comfortable aerobic work and hard threshold efforts, also known as 'no man's land' because it's allegedly too hard for easy days and too easy for hard days. Every endurance athlete's accidental default pace.
A weight progression scheme where you either increase weight and decrease reps each set (ascending) or the reverse (descending). It's the mathematical approach to training that makes you feel smart until you're too exhausted to count.
A supplement consumed before training, typically containing caffeine and various stimulants to increase energy and focus. It turns regular humans into temporarily jittery superhumans with questionable decision-making abilities and tingling skin.
Metabolic conditioning—high-intensity circuits designed to improve your body's energy systems and work capacity while simultaneously destroying your will to continue. Cardio's angry, violent cousin.
A set structure with brief rest periods (10-30 seconds) between small rep clusters, allowing higher quality reps with heavier weights. The commercial break approach to strength training.
The controversial theory that constantly changing exercises prevents adaptation plateaus by 'confusing' your muscles. Muscles don't have brains and can't be confused, but this hasn't stopped fitness marketers from selling programs based on outsmarting your biceps.