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Advanced Human Performance by Dr. Joel Seedman

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Advanced Human Performance by Dr. Joel Seedman

Founded by Dr. Joel Seedman, Advanced Human Performance is an athletic performance, fitness consulting, personal training, and sports nutrition company.

Founded by Dr. Joel Seedman, Advanced Human Performance is an athletic performance, neuromuscular therapy, sports nutrition, personal training, and strength and conditioning company in Atlanta, Georgia. Dr. Seedman also writes articles and for many magazines and websites including Muscle and Fitness, T-Nation, Men's Health, Men's Fitness, Bodybuilding.com, Self Magazine, STACK, and many others.

03/10/2026

My 2 New books 📚 on Amazon are number 1 & 2 on Amazon’s New Release Chart for Exercise & Fitness Injury Prevention Categories.

Both of these books will change your lives & they’re available FREE as Kindle ebook or hard copy on Amazon or free on my website.

Movement Redefined Fundamentals breaks down all the training methods I use with my athletes & distills it down for practical application & easy implementation for all levels of fitness & all backgrounds of training. I break down the 90 degree methods & explain how to implement it into your training.

Mind, Body, Spirit – Redefined: Part 1explores the physical dimensions, mental, & spiritual realms and how they each interconnect and work in harmony so much so that in order to understand my training methods as well as exercise science as a whole you’ll need to view it through a spiritual lens. If you don’t believe in God you will after reading this book. And if you don’t believe in the 90 degree training methods you will after reading both of these. I’ve been waiting several years to release this book because I know it’s going to cause some controversy but I firmly believe it will transform the fitness industry forever.

Check out my Right Angle Podcast on YouTube & Spotify as we break down all of the topics in these book and explore the science as well as the spiritual realm to see how they connect & point back to each other. New Episode now live!!

These books and methods are transforming lives across the world for God’s glory!! Halleluyah!!

03/09/2026

90 Deg = Best for Humans!! My 2 new FREE books on Amazon explain and both are available either as a FREE Kindle download or hard copy format. If you don’t believe in God or the 90 degree training methods you will after reading these 2 books currently ranked number 1 & 3 on Amazon’s New Release charts for physical fitness & rehab books. God gets all the glory!!

Here’s NFL prospect .t.byrne on a 500+ lb barbell back squat.

Best shoes (code DRJOEL). These shoes are scientifically shown to enhance muscle function, joint health, & lower body strength.

7 Key facts about Squats.

1.Unless You’re a competitive Olympic weightlifter or powerlifter then there’s really no reason to squat significantly past 90 degree joint angles.

2.The risk of going below 90 deg is significantly higher in terms of orthopedic injuries.

3.There’s zero additional growth & strength gains going past 90 degrees. In fact going below 90 degrees compromises strength gains & muscle growth because of the reduced muscle activation, motor unit recruitment, and reduced number of cross bridge attachments that occurs when going past 90 deg.

4. For athletes 90 degrees is much more sport specific and transferable to athletic activities including sprinting, jumping, throwing, kicking, punching, etc.

5. In terms of maximizing power output & speed, a majority of studies favor 90 deg or partial squats.

6. The myth that long length or extreme range of motion is necessary to maximize hypertrophy is based on bro science not real science. Research confirms that after a moderate or natural amount of stretch, there’s no additional benefits. Simply there is a point of diminishing returns and that point is roughly 90 degrees on most movements including squats, lunges, hinges, presses, pulls and more.

7. A 90 degree squat is significantly above parallel due to tibial inclination. A parallel squat is roughly 120 deg of knee flexion or 30 deg below parallel. The only time a parallel squat & 90 deg squat are the same is on a wall sit.

More in my 2 New FREE books on Amazon and my Right Angle Podcast on YouTube.

03/08/2026

Fix your Form!! My 2 new FREE books 📚 on Amazon explain and both are available either as a FREE Kindle download or hard copy format for the next 8 hrs. If you don’t believe in God or the 90 degree training methods you will after reading these 2 books currently ranked number 1 & 3 on Amazon’s New Release charts for physical fitness & rehab books. God gets all the glory🙏!

Go barefoot or wear shoes👟 code 🤑 DRJOEL in order to optimize foot activation. These shoes are scientifically shown to enhance joint health & leg strength.

Clothing 👕 .

One of the most neglected components of proper lower body movement is foot & ankle function. Without proper foot & ankle mechanics it’s impossible to perform any lower body exercises correctly. That means your squat, hip hinge, lunge, & even running & walking mechanics will be off. That’s why we use so many different foot & ankle modalities with our athletes & personal training clients.

The half roller is a great tool for cueing athletes on their foot & ankle mechanics and can be applied to any lower body exercise including squats, hinges, lunges, single leg variations & more. You can also use it for mediolateral (side to side by placing the roller length-wise or antero-posterior instability (front to back by placing the roller width-wise).

Here me & my athletes NPC figure athlete , NFL athlete NFL prospect .calzada , & NFL prospect demonstrating 15 variations.

The secret to locking these tricky movements in is using proper posture combined with 90 degree eccentric isometrics. This will help you optimize your technique, alignment, muscle function, & joint health. Folks around the world switching to the 90 deg EI method & noticing healing, restoration & physique changes that were impossible with any other modality. God gets all the glor!!

More References in my 2 FREE books on Amazon & in my YouTube Podcasts.

The 15 Variations described below in comments.

03/06/2026

90 Deg Wins Again!! My 2 new FREE books on Amazon explain and both are available either as a FREE Kindle download or hard copy format for the next 48 hrs. If you don’t believe in God or the 90 degree training methods you will after reading these 2 books currently ranked number 1 & 2 on Amazon’s New Release charts for physical fitness & rehab books. God gets all the glory!

Yes more & more folks including celebrities, pro athletes, trainers, bodybuilders, & even politicians like RFK here doing the leg press are switching to 90 deg method. But why? One Word….. RESULTS!!! Yes once people give the 90 deg method an honest try they not only experience better joint health, strength gains, & muscle health, but it helps heal & recover nagging pain, injuries, & musculoskeletal issues that traditional methods including medical intervention were unable to resolve.

Unfortunately traditional strength training with full range of motion is considered by latest research to be one of the most injurious types of physical activities for humans. Yes, strength training is healthy why not reap the benefits & more while eliminating the common downsides & pitfalls associated with strength training. The answer lies in the 90 deg eccentric isometrics method I highlight in my 2 NEW FREE books on Amazon.

I also discuss more in my YouTube Podcasts link bio.

Attarieh, Parsa & Nunes, João Pedro & Khani, Saeed & Negahdar, Saman & Goli, Amirali & Nazarirad, Hamed & Nazarirad, Shahriar & Mojtahedi, Shima & Nosaka, Kazunori & Soori, Rahman. Comparison between shoulder flexed & extended positions in elbow flexion resistance training on regional hypertrophy & max strength: Feb 2025 European Journal of Sport Science.

Larsen, Stian & Wolf, Milo & Schoenfeld, Brad & Østerås Sandberg, Nordis & Fredriksen, Andrea & Sandvik Kristiansen, Benjamin & Tillaar, Roland & Swinton, Paul & Falch, Hallvard. (2025). Knee flexion range of motion does not influence muscle hypertrophy of quadriceps during leg press training.

More References below & dozens more in my 2 FREE books on Amazon & YouTube Podcasts.

03/05/2026

I'm thrilled to announce, that after many requests over the last several months, my book Movement Redefined Fundamentals is finally available in hard copy on Amazon and it's currently #1 on the Amazon's New Release list for Physical Fitness and Rehab. link at https://www.amazon.com/dp/B0GNYVVXJK/ .

And yes it's still FREE on my website as well as Kindle on Amazon. However it's also been updated as of today. So if you've already downloaded it from my site you might want to download again for the updated version or check it out on Amazon. https://www.advancedhumanperformance.com/movement-redefined-fundamentals .

This book represents an abbreviated version of my larger book Movement Redefined as a more user friendly guide on how to incorporate all of the training methods, protocols, and techniques I use with my athletes, clients, and myself.

But why is it FREE?? Because I want to help change as many lives as possible for God’s glory!! I don’t care if I lose out on massive financial earnings. Your well-being and health are more important!!! The methods in this book healed my body and changed my life. It’s done the same for tens of thousands around the world. I want you to have access to it with zero obstacles or road blocks.

Oh and bonus fact: The other new books that were supposed to launch in April, Part 1 just got an unexpected early launch and is NOW available on Amazon. Check out Mind, Body, Spirit - Redefined Part 1 at https://www.amazon.com/dp/B0GQTMPXJ8 .

If you don't believe in God or the 90 Degree training methods I use, you will after reading this book.

Shirt from M2BMade.
Please feel free to leave reviews on Amazon and spread the word to get the message out. Thank you all for your support!!

03/05/2026

Strength & Power Workout. My 2 new books now on Amazon. Hard copy available & also Free on Kindle. These books explain all of my training methods. But more importantly, if you don’t believe in God or the 90 Degree training methods I use, you will after reading these 2 books.

Here’s NFL prospect on a 8-part workout that emphasized lower body strength, explosive power, & speed. Lucah is prepping for his NFL pro day and already has multiple teams in the NFL & CFL interested. All NFL & CFL teams need to watch out for this guy. He’s from France and one of the top international football athletes in the US. He’s an absolute beast on the field with fantastic running back skills & one of the hardest workers I’ve ever seen. His strength, power, & speed continue to improve each week.

The emphasis with this workout is using heavy strength exercises to potentiate each subsequent explosive exercise so as to create more speed & power. For instance performing the jump squats & triple extension squats after the heavy partials allows the athlete to experience higher levels of power as the heavy loads from the partials create post activation potentiation (PAP or PAPE).

Research shows this is a gamechanger for enhancing power for all athletes. Essentially the heavier loads hyperactivates the CNS so the lighter loads feels light & explosive.

The 8 Exercises.

1.Partial Pin Squats (emphasize max bar speed even though it’s heavy).

2. Triple Extension Squats.

3. Barbell Jump Squats.

4. Loaded Hip Flexion with Kettlebells.

5. Plate Swings.

6. Single Leg Bird Dog Renegade Rows.

7. Shin Raises with code JS10.

8. 90 Deg Barbell Squats (90 deg joint angles is above parallel due to tibial inclination).

The 90 deg methods not only maximize power, speed, athletic performance, & muscle growth but also joint health & injury restoration. Folks around the world experiencing near-miraculous results with these methods. God gets all the glory!

Learn more about these training methods in my 2 new books on Amazon. At https://www.amazon.com/dp/B0GNYVVXJK/ .

03/04/2026

I’m thrilled to announce, that after many requests over the last several months, my book Movement Redefined Fundamentals is finally available in hard copy on Amazon and it’s currently #1 on the Amazon’s New Release list for Physical Fitness and Rehab. link at https://www.amazon.com/dp/B0GNYVVXJK/ .

And yes it’s still FREE on my website as well as Kindle on Amazon. However it’s also been updated as of today. So if you’ve already downloaded it from my site you might want to download again for the updated version or check it out on Amazon. https://www.advancedhumanperformance.com/movement-redefined-fundamentals .

This book represents an abbreviated version of my larger book Movement Redefined as a more user friendly guide on how to incorporate all of the training methods, protocols, and techniques I use with my athletes, clients, and myself.

But why is it FREE?? Because I want to help change as many lives as possible for God’s glory!! I don’t care if I lose out on massive financial earnings. Your well-being and health are more important!!! The methods in this book healed my body and changed my life. It’s done the same for tens of thousands around the world. I want you to have access to it with zero obstacles or road blocks.

Oh and bonus fact: The other new books that were supposed to launch in April, Part 1 just got an unexpected early launch and is NOW available on Amazon. Check out Mind, Body, Spirit - Redefined Part 1 at https://www.amazon.com/dp/B0GQTMPXJ8 .

If you don’t believe in God or the 90 Degree training methods I use, you will after reading this book.

Shirt from .

Please feel free to leave reviews on Amazon and spread the word to get the message out. Thank you all for your support!!

03/02/2026

Full ROM = Injuries. My FREE book explains!! Also available on Amazon in hard copy, It’s currently number 1 on Amazon’s New Releases for Fitness Rehab category! Link bio.

Science shows incidence of injuries caused from traditional strength training with full range of motion is exponentially higher than we once thought due to new research. (Lots of pubmed references below & in my YouTube Podcast).

And yes, even with light submaximal loads many folks (natural & geared lifters) are injuring themselves & it’s because of form, technique, & excessive range of motion. Here’s warming up on squats & getting injured.

When you train significantly below 90 degree joint angles you will be consistently injured.

In contrast training to 90 degrees even with heavy loads is incredibly therapeutic & provides healing & restoration while helping heal injuries that no other modality could resolve. 90 deg training also maximizes muscle growth & strength.

Pubmed doi: 10.1177/2325967118771016.

Here are 12 facts about traditional weightlifting & powerlifting.

1. 70% of participants in studies were currently injured.

2. 87% had an injury within past 12 months.

3.Injuries seemed to occur during training suggesting training itself was the likely cause.

4.More than half of the lifters reported injuries in at least 2 different body regions at any time.

5.The squat seemed to produce the highest incidence of injury (43%) even when compared to bench press (27%) & deadlift (31%).

6. Only 5% of injuries were technique related, a finding the researchers found surprising, as it suggests current definitions of proper lifting form are flawed given participants were simply following current mandates.

7.In weightlifting 40.8% have low back pain.

8. A total of 93 patients & back pain found in 43 patients & 25% required surgery.

9. All participants (100%) reported pain to be initiated during or after training.

10. 43.3% of powerlifters complain of problems during workouts.

30+ Pubmed References on my New YouTube video Podcast link bio.

More in my FREE book link bio.

03/01/2026

Healthy Muscles & Joints! My book is on Amazon as hardcopy or FREE on my website. It’s currently number 1🥇 on Amazon’s New Releases for Physical Fitness Rehab category! Link bio.

Here are NFL athletes & on 90 degree eccentric isometric exercises some with eyes closed.

15 Benefits of 90 Deg Training.

1. Healthier Joints because you’re not destroying your cartilage from deep ROM.

2.More Muscle Growth from more muscle activation & motor unit recruitment.

3. Increased Strength & ability to safely handle heavy loads without injury or pain.

4. More Stability from greater motor control since 90 = max co-contraction & stiffness.

5. Improved Recovery since you’re not creating excessive micro-tears in the muscles.

6. Better Alignment throughout kinetic chain.

7. Better Posture Spine Health since you don’t have to compensate when you move.

8. More Speed & explosive Power from better leverage & power output.

9. Eliminates Imbalances as you eliminate energy leaks & compensations.

10. Better Proprioception (muscles spindle activation is maximized at 90 deg).

11. Improved Symmetry. Much asymmetry is a result of moving incorrectly & too deep.

12. Force Absorption & improved ability to handle impact & deceleration.

13. Sport Specific since most sports we want 90 deg joint angles.

14. Improved Mobility (YES) all our clients can deep ATG squat better once they switch to 90.

15. Strength in All Ranges. Shape of length tension relationship curve is constant for humans. This is due to increased number of cross-bridges, motor unit recruitment, anatomical leverage, elastic energy, length tension relationship, co-contraction, reciprocal inhibition, & muscle activation. In other words 90 deg optimizes physiological function & tissue health. This minimizes & eliminates inflammation.

Thousands of folks switching to 90 deg because of the results. God gets all the glory!

More in my FREE book on my website or get the hard copy on Amazon which is the number 1 New Release on Amazon’s fitness rehab list.

03/01/2026

Hip Drive & Speed Workout. My Book now available on Amazon as hardcopy or FREE on my website. It’s currently number 1 on Amazon’s New Releases for Physical Fitness Rehab category! Link bio.

Here’s NFL prospect on a 6-part workout emphasizing hip drive, hip power, & lower body speed as he prepares for his NFL pro day. All NFL teams need to watch out for this guy. He’s from France and one of the top international football athletes in the US. He’s an absolute beast on the field with fantastic running back skills & one of the hardest workers I’ve ever seen.

1.Single Leg RDL & Box/Bench Clean with Mini Band from . The bench or box catch allows the athlete to focus on unilateral power without instability on the catch being a limiting factor as the box/bench helps provide just enough support to catch & stabilize athlete. So we get the benefits of performing single leg training in terms of unilateral loading but still get enough support from the bench/box to maximize unilateral power output.

2. Landmine Viking Squat & Push Press (Thruster). The force vectors more closely match what we would see in sports.

3. Hip Thrusting Bench Press. Think of this as a push press but applied to the bench press requiring maximal hip drive & glute activation.

4. Oblique Slings Inverted Sprinter Row on Rings. One of the most intense full body oblique slings exercises that blasts lats, hips, back, hip flexors, & core stabilizers.

5. Dumbbell Single Leg RDL with Loaded Hip Flexion. Credit to personal trainer & kinesiologist for this. Great for targeting hip flexors & glutes with sport-specific activation patterns similar to sprinting.

6. Split Squat Lunge High Pulls. Works acceleration and deceleration/impact especially on the catch phase.

Combine this with the 90 degree eccentric isometrics method for optimizing physiological function & performance. It’s also helping thousands of folks around the world overcome pain & injuries where no other method including medical intervention could help. God gets all the glory!

02/27/2026

Core, Stability, & Posture Workout! My Book now available on Amazon as hardcopy or FREE on my website. Link bio.

Here’s NFL vet on a full body stability, core, & posture workout we recently did. Posture & alignment are absolutely critical not just for athletes but all humans. That’s because it dictates our overall body mechanics & muscle function. If posture & alignment are off then muscle function & biomechanics are off which research shows doesn’t just lead to more injuries & pain but also accelerates the aging process. In other words posture, alignment, technique, body mechanics, & muscle function are incredibly important for longevity & anti-aging not to mention athletic performance & physique enhancement. And yes if you’re trying to maximize muscle growth then posture & alignment are key as well.

Combine this with the 90 degree eccentric isometrics method we use & you now have the single most effective training method for optimizing physiological function & performance. It’s also helping thousands of folks around the world overcome pain & injuries where no other method including medical intervention could help. God gets all the glory!

And no I’m not trying to sell you anything because the books are completely FREE on my website. If you want a hardcopy you can get on Amazon but you might as well as just download for free on my website.

The 9 Exercises.

1.Offset Kneeling Barbell Posture Hold.

2. Rotational Bench Press with Cubb Bar use code 5% DRJOEL 🤑. This bar is incredible for cueing the lats & upper back which leads to greater chest & pectoral development & less stress on shoulder joint.

3. Makeshift T-Bar Row & RDL

4. Grip rotations .co .

5. Safety Bar Posture Kettlebell Split Squat Lunge. Bar .

6. Single Leg Stands on code JOEL for 10% off.

7. Rotational Pullups Cubb Resistance in Rotation Bar code 5% DRJOEL .

8. Rotational Shoulder Press Cubb Resistance in Rotation Bar code 5% DRJOEL .

9. Safety Bar Posture Squats (not shown).

02/25/2026

Fix your Hip Hinge! My FREE book on Amazon or my website explains the training methods, link bio.

Make sure you go barefoot or wear barefoot shoes like I show here with (code DRJOEL) as research shows this optimizes proprioception, balance, stability, & alignment which is crucial not just on single leg exercises but also bilateral moves like squats and deadlifts.

Here’s my awesome client & NPC figure athlete demonstrating proper single leg RDL form.

One of the most common problems on single leg RDL’s and single leg Hip hinges (as well as most single leg movements like single leg squats, lunges, & Bulgarian squats) is people allow their back hip and leg to flare out.

Focus on keeping the back leg, hip, knee, and foot in-line by driving it inward (firing your adductor inner thigh muscles). This actually helps you drive into your front loaded leg more and get more activation in the posterior chain not to mention it optimizes alignment throughout the kinetic chain. It also spares the low back, spine, hips, and knee joints.

If you go significantly below 90 degree joint angles (20-30 deg above parallel) on the RDL then you’ll have to compensate by rotating your hips outward. Simply one of the keys to optimizing your hip alignment and not compensating or rotating outward is making sure you aim for roughly 90 degree joint angles.

But the secret to finding these natural & biomechanically ideal 90 degree joint angles with perfect alignment is by first setting your posture before you start the movement. Then maintain that throughout. Inevitably this will clean up your form, alignment, and range of motion.

Folks around the world using the 90 deg methods and finding incredible results not just for their physiques and performance but also healing & restoration to injured sites that no other methods including medical intervention could resolve. The methods are working and God gets all the glory!!!

More in my FREE book and YouTube Podcasts.

Address

AHP Address: 560 Old Peachtree Road NW
Suwanee, GA
30024

Opening Hours

Monday	9am - 9pm
Tuesday	9am - 9pm
Wednesday	9am - 9pm
Thursday	9am - 9pm
Friday	9am - 9pm
Saturday	12pm - 9pm
Sunday	12pm - 9pm

Telephone

+16789022477

Website

http://AdvancedHumanPerformance.com/

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