Scientific Principles of Strength Training — Chad Wesley Smith — 285


Chad Wesley Smith is the owner/founder of Juggernaut Training Systems and one of the most accomplished strength athletes of recent years. With a background in track and field, Smith took his 2 collegiate national championships and continued his success in powerlifting and strongman.

We enjoyed recording this episode with our friend Kenny Kane, in Chad’s backyard.

More info: Scroll to the bottom to watch the show, listen to the show, and connect with Chad Wesley Smith.

Note: timestamps are based on YouTube version.


Chad Wesley Smith’s book: Scientific Principles of Strength Training

“One of the most comprehensive resources available on the topic of building strength. Scientific Principles goes far beyond just giving you sets and reps to use for a few weeks or months, rather it will empower you with knowledge to create effective training programs and make informed answers to tough training problems for a lifetime.” —


Powerlifting meets

In October 2010, Chad competed in his first Powerlifting Meet, which was also the first USPA Meet with only 36 athletes competing. Chad squatted 800 lb., deadlifted 700 lb., and benched 463 lb. Even though it was his first meet, at that point Chad had already been writing his own workouts for 10 years (since 14 years old!).

Since 2010, Powerlifting took off as a sport, and now USPA Powerlifting Meets happen almost every weekend, with 60-120 people competing.

Check out this throwback video of Chad’s first Powerlifting Meet:


Chad’s knowledge prep for weightlifting

Chad started as a sports performance coach and later got into powerlifting, where he functioned as his own guinea pig. To learn in detail about powerlifting and weightlifting, Chad read two particularly dense and influential books:

  1. Supertraining by Yuri Verkhoshansky and Dr. Mel Siff

2. Science and Practice of Strength Training by Vladimir Zatsiorsky and William Kraemer

Chad also learned by watching James Smith applying principles from these books into his training programs. James Smith is a performance coach and consultant to high level athletes, Navy SEALs, special forces and more.


Specificity — #1 principle for strength training

When he first started, Chad used to write elaborate workouts in an attempt to figure out all the moving pieces of training. Now with 17 years experience of authoring training programs under his belt, he applies more strategic use of exercise variation through a better understanding of sports specificity.

When Chad was training for shot-put in college, he started with a great natural foundation. He had a 36″ vertical jump weighing 290 lb.! He could also dunk a 4 kg medicine ball with two hands. But despite his natural athletic abilities (which indicated Chad should be able to throw a shot-put 71–72 feet), he could only get 64-65 feet.

That’s when Chad learned about specificity and developing special strength. He realized bench press and squatting help athletes improve, but the most important thing is to find movements that apply to the specific sport. For shot-put, he trained over and underweight shots plus many rotational exercises.

Pro tip: Besides training optimization, Chad recommends young athletes internalize two important life skills: understanding proper phasic structure and delayed gratification. 


Chad teaching Doug how to squat

Tune in to the video podcast to watch Chad teaching Doug how to squat. Watch the video podcast from minute 18:20.

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How to ensure functional training

Training for competitive Powerlifting or Weightlifting is straightforward in terms of what lifts are functional for those sports. But for sports like basketball, football, and baseball, which involve different movements, you need to find functional exercises for their specific sport.

Chad’s 3 principles for functional training

  1. Can the athlete perform the exercise safely and effectively
  2. Can they put some weight to create stimulus
  3. Does it fit in the context of their bigger plan


It’s tough coaching MMA and CrossFit athletes

Outside of weightlifting, Chad coaches athletes in many sports such as football, track & field, volleyball, water polo, swimming, and jiu-jitsu. Chad usually doesn’t work with MMA or CrossFit athletes because there are so many moving parts, which require strong communication between coaches– however that is usually not the case.


Specificity is most important, but don’t take it too far

Sport specificity should set the framework for how all other decisions are made, but you could also take specificity too far. For example, if you are a powerlifter or weightlifter who keeps focusing on 1 RM, you are likely to become overtrained. You are also likely to miss out on variation, how it can help avoid adaptive resistance, and the benefits of phase potentiation and phasic structured training (which ensures you’re making the most of each training phase).

“The longer you do something, the less effective it becomes overtime.” — Chad Wesley Smith

Ironically, athletes usually attribute the most importance to individual differences, which is Chad’s 7th and final principle. Athletes like to think they’re a special snowflake, but individual differences are much smaller than people perceive.


Chad’s 7 Scientific Principles of Strength Training

1. Specificity — See above.

2. Overload — Is training stimulating enough to drive neural adaptation? Training must become harder overtime through more volume and more weight.

3. Fatigue management — Your recovery process: Besides deload days and proper nutrition and sleep, should include adaptive recovery strategies like ice baths, massages, etc.

4. SRA (Stimulus Recovery Adaptation) — Your training process: Frequency and duration of training and recovery.

5. Variation — Avoid staleness by shifting phases. Keep in mind variation should always be in context with Specificity (principle #1).

6. Phase potentiation — Make the most of each training phase.

7. Individual differences — See above.

Keep in mind: Chad’s principles are also useful for the general population. All you have to do it change principle #1 (specificity) to your own goal, which can be losing weight, building muscle, being able to stand on a paddleboard, etc.

Connect with Chad Wesley Smith

Connect on social: Instagram, Facebook, Twitter

Resources: Juggernaut Training System, The JuggLife Podcast

Chad’s books: Scientific Principles of Strength Training

Watch the show

Listen to the show

Subscribe to iTunes (iPhone) or Stitcher (android) for audio:

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Train smart,

Mike and Doug

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