Have you ever opened a workout and thought, “Okay… what the hell does that mean!?” Same. And honestly, this is exactly why I wanted to record this episode.

This is the first episode in The Gym Confidence Series, where we are going to unf*ck the confusion around workouts, nutrition, and what it actually takes to see results.

Let’s be real: the gym can already feel intimidating enough and then you add in terms like RPE, reps in reserve, progressive overload, tempo, AMRAP, supersets, time under tension, and suddenly it feels like you need a fitness dictionary just to get through your workout.

You deserve to understand what these terms mean so you can stop second guessing yourself and start walking into your workouts with more confidence.

In this episode, I’m breaking down the gym lingo you actually need to know. Not the random overcomplicated stuff. Not the fitness bro language that makes everything feel harder than it needs to be. Just the terms that will help you understand your workouts, execute them better, and feel more confident in the gym.

In this episode, we cover:

What sets, reps, tempo, and rest time mean
How workouts are structured with straight sets, supersets, circuits, and intervals
How to understand workout intensity using RPE, reps in reserve, and failure
Why progressive overload is key for building muscle and seeing results
What volume and deload weeks are
Common workout terms like AMRAP, drop sets, warm-up sets, and working sets
Why execution matters inside your workout
What time under tension, mind-muscle connection and range of motion mean

Links/Resources:

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Join FIT CLUB, my monthly membership with workouts you can do at home or the gym
Connect with me on Instagram @kristycastillofit and @unfuckyourfitnesspodcast
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