262. Build Season Q&A: Lean Builds, Training Splits, RIR + More

Oct 06, 2026
Build Season Q&A: Lean Builds, Training Splits, RIR + More
 

 

I’m excited to continue our build season conversation with another fun Q&A!

In today’s episode, I'm talking all about TRAINING. Think lean builds (something I’ve been asked about a lot lately), body recomposition, workout splits, progressive overload, reps in reserve (RIR), and more. 

Yes, ALL of the stuff that can sound way more complicated than it actually is (I promise, it really isn’t)!

My goal with this episode (as always), is to unf*ck it for you so you understand what you're doing in your workouts + WHY it matters.

No, you don't need to perfectly understand every training term to build muscle. But…the more you understand your workouts, the more confident and intentional you can become!

Episode Recap:

  • Can you build muscle and cut at the same time?
  • What is a lean build + how is it different from a traditional build?
  • How often should you train each muscle group for muscle growth?
  • What is progressive overload + how does it relate to training frequency?
  • How do you choose the right workout split for your schedule & goals?
  • What does RIR (reps in reserve) mean + how do you know if you're doing it correctly?
  • How can you tell if you're actually lifting “heavy enough”?
  • Good alternatives to lunges + how to approach exercise substitutions?

Links/Resources mentioned:

More about the Unf*ck Your Fitness Podcast:

If you've tried all the fad diets and are sick and tired of not achieving your health and fitness goals long-term, you've come to the right place! Welcome to the Unf*ck Your Fitness Podcast with me, Kristy Castillo. I'm here to help you break the annoying diet cycle, gain confidence, and reach your health and fitness goals. 

This podcast will show you how to be proud of the body you have, build the body you want, and enjoy the process along the way. I'll cover topics like how to get the most from your workouts, the importance of feeding your body what it needs, and key mindset shifts that will empower you. I've broken through the BS surrounding diet culture and built my dream body, all while being a busy wife, Mom and business owner, and I know you can too!

Connect with me on Instagram at @kristycastillofit

Learn more about working together by visiting my website: https://www.kristycastillo.com/

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