Essentials: How to Build Strength, Muscle Size & Endurance | Dr. Andy Galpin

April 2, 2026

AI Summary

5 min read

Dr. Andy Galpin, a professor of exercise physiology, joined Andrew Huberman to lay out a clear, evidence-based framework for resistance training. The core of the conversation was about how to deliberately manipulate a handful of training variables to get a specific outcome—strength, muscle size, or endurance—and why the same workout can produce completely different results depending on how it is executed.

The Nine Adaptations and the Principle of Overload

Galpin began by listing the nine distinct adaptations possible from exercise: skill, speed, power, strength, hypertrophy (muscle size), muscular endurance, anaerobic power, VO2 max, and long-duration endurance. These categories are not entirely separate; power, for instance, is a function of strength multiplied by speed. The key is that pushing toward one adaptation can sometimes sacrifice another.

The non-negotiable foundation for any improvement is progressive overload. The body adapts only when it is stressed beyond its current capacity. If you repeat the exact same workout indefinitely, you will maintain your current level but not improve. Overload can come from adding weight, doing more repetitions, training more frequently, or even increasing the complexity of a movement.

The Modifiable Variables: How to Dial in a Specific Result

Continue reading the full summary in the app — free to try.

Read Full Summary →

Free • No credit card required

Listen to Audio Summary Open in App

Never miss an episode of Huberman Lab

Get every new episode summarized in your inbox — free, ~5 minutes to read.

No spam. Unsubscribe anytime.

What you'll learn

1 (00:11) **Episode Introduction** - Andrew Huberman introduces the Essentials format and his guest, Dr. Andy Galpin, a trusted expert in exercise physiology.
2 (00:55) **The Nine Adaptations of Exercise** - Galpin outlines the full spectrum of physical adaptations possible from training, from skill to long-duration endurance.
3 (03:01) **The Principle of Progressive Overload** - To improve, you must systematically increase the stress placed on the body.
4 (04:01) **The Modifiable Variables of Training** - A short list of variables that can be changed to alter the outcome of a workout.
5 (06:19) **Soreness as a Metric & Training Frequency** - Soreness is a poor proxy for workout quality, and frequency is critical for most adaptations.
6 (08:39) **How to Get Strong Without Gaining Size** - Manipulating training variables allows for significant strength gains with minimal muscle growth.
7 (10:14) **Exercise Selection: Full Range of Motion & Balance** - The default for exercise choice is full range of motion through all joints, balanced by movement pattern.

+ Full timestamped outline available in the app

Guests on this episode

Dr. Andy Galpin Andrew Huberman

Show Notes

In this Huberman Lab Essentials episode, my guest is Dr. Andy Galpin, PhD, Executive Director of the Human Performance Center at Parker University and an expert in building strength and muscle size (hypertrophy). We cover the core principles and protocols for building strength and muscle, including science-based guidance on reps, sets, frequency and rest intervals. We also discuss how breathing and mental focus can enhance training and how post-workout downregulation can speed recovery.

Read the show notes at hubermanlab.com.

Subscribe to Perform with Dr. Andy Galpin at performpodcast.com.

Thank you to our sponsors

AG1: https://drinkag1.com/huberman

LMNT: https://drinklmnt.com/huberman

Eight Sleep: https://eightsleep.com/huberman

Timestamps

(00:00:00) Andy Galpin

(00:00:39) 9 Exercise Adaptations; Progressive Overload

(00:03:53) Progressive Overload, One-Rep Max, Soreness, Tool: Modifiable Variables

(00:08:39) Sponsor: LMNT

(00:10:12) Full-Body Workout, Exercise Selection

(00:12:44) Training Intensity, Repetitions, Sets, Rest Intervals, Supersets

(00:16:24) Sponsor: AG1

(00:17:48) Hypertrophy vs Strength Training Recovery

(00:20:03) Training Volume & Frequency for Hypertrophy

(00:21:56) Hypertrophy Rep Ranges, Frequency & Recovery; Cell Mechanisms

(00:25:28) Sponsor: Eight Sleep

(00:26:46) Tool: 3 x 5 Protocol; Power vs Strength

(00:28:23) Mental Awareness in Training; Mind-Muscle Connection

(00:31:25) Activating Muscle Groups, Awareness, Tool: Eccentric Overload

(00:33:40) Perform Podcast: Season 3

(00:34:04) Tool: Resistance Training Breathing & Post-Training

(00:38:20) Acknowledgments

Disclaimer & Disclosures

Learn more about your ad choices. Visit megaphone.fm/adchoices