Advanced Human Performance by Dr. Joel Seedman

Squat Depth Facts! My 2 FREE books explain all my training methods. Hard copies on Amazon. Link bio.

Barefoot shoes (code🤑 DRJOEL25OFF). These shoes are scientifically shown to optimize joint health & biomechanics.

Here’s personal trainer on 90 degree eccentric isometrics squats.

10 Truths about squat depth.

1.90 Degree joint angles is maximal range of motion. (90 deg = significantly above parallel due to tibial inclination).

2. However, it’s Max range of motion while maintaining perfect posture, braced core, proper alignment, full body tension, feet perfectly straight & activated, & ZERO compensations.

3. To get deeper you’ll have to sacrifice 1 or more of these in proportion to the excessive depth you choose to achieve.

4. For instance to get lower even just to parallel you’d have to compensate & sacrifice some semblance of optimal activation patterns & biomechanics. That means over time sacrificing strength & muscle but also joint health.

5. If we want to get technical “Maximal range of motion” occurs just before the muscles & tendons rip off the bones.

6. However few people would ever recommend something so asinine.

7. Yet in the fitness industry we’re oftentimes recommending Max range of motion not because the science says so but because bro science says so.

8. Max range of motion & optimal range of motion are 2 very different things.

9. Optimal range of motion & optimal biomechanics looks very similar from person to person as what’s optimal based on structural muscle physiology, biomechanics, & neuromuscular physiology remains relatively constant from human to human.

10. Individual differences in anthropometrics manifest themselves primarily when individuals use excessive depth as this is where we’ll see compensation patterns unique to each human.

90 Degrees maximizes muscle growth, strength, stability & JOINT HEALTH! People are writing in daily telling us how 90 deg EI healed & transformed their bodies while also giving them more muscle growth & strength than any method. God gets all the glory!

More in my 2 FREE books link bio.

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First Session! My 2 FREE Books & YouTube podcasts explain all of the training methods, science, & research studies. Link at https://www.advancedhumanperformance.com/mind-body-spirit-redefined

Great first session yesterday with NFL athlete Travis Glover as we focus on the basics and starting the movement mastery process with 90 degree eccentric isometrics.

My first sessions are pretty predictable now as I’ve streamlined the process more and more over the years. Assessment used to be 60-90 minutes. Now it’s 5 minutes. Next session we would cover posture then 3-4 exercises. Then the next workout we would cover 4-5 more. That’s 3 sessions to complete all that. Now everything is 1/3 the time as we accomplish all of this in 1 session (the first session). Much of this is due not just to refining the process and streamlining the service but focusing more in the science of kinesiology (exercise science).

As I was explaining to Travis yesterday I used to spend quite a bit of time assessment and analyzing what particular muscle wasn’t firing properly on each area of the athlete. But that’s totally unnecessary. Simply teach the athlete how to move correctly and whatever needs to activate and wake up will and whatever compensation patterns are occurring, simply having the athlete perform movement with proper mechanics will resolve it.

That’s why the assessment process is so quick. Because the solution is so simple & so crazy effective. Simply teach the athlete how to move correctly the way God intended our bodies to move particularly under high load scenarios. When we do that it brings maximal health, healing, restoration, muscle growth, strength, joint health, explosive power & more.

But the key is focusing on posture from head to toe. Posture starts with head position. Once you nail down posture & foot mechanics then it’s so unbelievably easy & simple how to teach athletes to move correctly & perform the exercises correctly so as to reap all of the benefits of strength training without the negatives. Yes it’s that simple.

More in my 2 FREE books & Right Angle Podcast on YouTube.

There’s a crazy connection between the Holy Spirit described in the Bible and Proprioception described in science. https://www.advancedhumanperformance.com/mind-body-spirit-redefined

The parallels between the Bible & Exercise Science are insane!!

In exercise science there’s a term called proprioception & it refers to our sense of feel during movement or kinesthetic awareness, and it’s critical for helping us master our movement and fine-tune our body positioning. This is why we perform slow eccentrics during heavy movements as it allows us to use our proprioception & fine-tune our body mechanics with internal feedback.

Now, the Holy Spirit described in the Bible gives us our sense of feel in the spiritual realm telling us when something is right or wrong & gives using that internal feedback as a spiritual compass about how we are moving & functioning spiritually. What’s interesting is the Bible in 1 John I t says you won’t need any man to teach you for the Holy Spirit will teach you. But the same applies to physical training. My job as a strength coach is not to get you to listen to me but instead to teach you how to tune into your own sense of feel & become your own coach . In fact this is the art of mastering your movement in the physical & spiritual realm.

The Bible & Science. My 2 FREE books explain everything at link bio or https://www.advancedhumanperformance.com/mind-body-spirit-redefined.

What's the crazy connection between strength training, the Holy Spirit, proprioception, the Bible, & exercise science? They’re very similar only one deals with the physical world & the other deals with the spiritual realm. Because God made our minds, bodies, & spirits, we know they work in harmony with each other while also mirroring each other. By learning about one it tells us much about the other.

The Bible consistently uses physical & physiological analogies to drive home spiritual messages. However those same analogies also have direct application for our physical bodies as well as our minds. By connecting the dots we see further proof that the Bible & science always confirm each other. And when they don't line up, we know the science will eventually catch up, just give it time.

Proprioception is a fancy word to describe our sense of feel during movement. However we also have a form of spiritual proprioception known as the Holy Spirit that teaches us about sense of feel in the spiritual realm. God gave us both for a reason. The more we learn about one the more it informs us about the other. Understanding this connection not only helps us live better spiritually for God's kingdom but also maximizes our physical potential not just for our strength training, fitness, & exercise, but also for joint health & injury prevention.

The Bible says in 1 John You won’t need any man to teach you for the Holy Spirit will teach you. The same applies to physical training.

This is where 90 degree eccentric isometrics come in as they maximize our proprioception & sense of feel ultimately allowing us to fine-tune our movement, modify our technique, & master our movement. But to gain the Holy Spirit in the spiritual realm requires one very specific thing, namely becoming Born Again.

My FREE book Mind, Body, Spirit – Redefined explains everything, link bio.

Also full Podcast episode on YouTube & Spotify link bio

Yes there is a crazy connection between the Bible and Exercise so much so that we can actually see the parallels between the blood sacrifice atonement system and sin found in throughout the scriptures and strength training form.

My 2 FREE books explain everything at https://www.advancedhumanperformance.com/mind-body-spirit-redefined

Is Hi**er in Heaven and is there Any Hope for deep ATG Squatters?

More in my 2 FREE books https://www.advancedhumanperformance.com/mind-body-spirit-redefined .

As a Jew I have direct & indirect family and friend ties to people who are killed in the Holocaust. So yes Hi**er is responsible for more death, atrocities, and suffering of my people the Jewish people, the people of Israel, the children of Abraham, Isaac, and Jacob. So from a natural standpoint I should hate his guts for all of the atrocities.

But from a spiritual standpoint Yeshua Jesus teaches us to love our enemies & pray for those who persecute you. Because at the end of the day no matter how awful and evil a person is do we really want to see someone suffer for eternity in hell which according to Jesus is a place of constant eternal agony, pain, and suffering, and torture. No if we have the Holy Spirit living through us then we should not want that even for Hi**er.

But let’s go a step further. Is it possible that Hi**er is not in hell but in heaven. If we look at the 4 gospel accounts of what happened to Yeshua (Jesus) on the cross we see something pretty mind blowing. Yeshua was crucified next to 2 criminals. Both of them were mocking him, cursing him, & reviling him. Yet at some point one of them has a change of heart and says to Yeshua (Jesus) just hours or minutes after cursing God to His face and mocking Him remember me in your kingdom. In other words He repented and surrendered to Yeshua. Jesus tells that man today you will be with me in paradise.

No one is beyond redemption, no one is beyond salvation & the saving power of what Yeshua did on the cross. We see this same story play out with the most hardened evil criminals of our day like Son of Sam who murdered people in cold blood yet he accepted Yahshua & went from demon possessed to born again believer.

So was there a chance for Hi**er. Yes there was and is a chance for everyone while they still have their breath. So we don’t know if in his final moments if Yeshua came to Hi**er & gave him one more chance.

There is a beautiful reminder of… (continued below) ⬇️.

Win $100. My 2 FREE books explain all my training methods.

Barefoot shoes code DRJOEL25OFF.

Here I’m demonstrating what I consider the Gold Standard Squat Test as it requires high levels of strength, stability, motor control, & proprioception. This will expose any form of dysfunction, aberration, imbalance, compensation pattern, or faulty recruitment patterns.

Complete this & win $100. The first person to complete it get’s $100 in cash. Everyone else wins $100 gift to any program on my website but 1st person wins cash & I’ll send by Venmo, Zelle, or Paypal.

The rules.

1. Use minimum 2.5x bodyweight for males or 1.75x BW for females. did it for females. See story!

2. Hold 90 degree Eccentric Isometric for 10 sec (90 Deg joint angles = above parallel due to tibial inclination).

3. There can be absolutely ZERO shift or change of biomechanics, depth, or body position throughout.

4. No significant quivering or shaking as that indicates lack of eccentric co-contraction.

6. You should be able to come up explosively on the concentric even after fatigue.

7. You must be barefoot or wearing minimalist shoes like I show here with Vivobarefoot (code DRJOEL25OFF).

8. You can NOT use any lifting aids. NO belt, straps, wraps, supportive equipment, or mirrors. Go to WAR just you & the barbell period!

9. First place winner must be lifetime natty, no steroids, testosterone, or peptides ever!! If you’re going to win $100 cash you have to be completely lifetime drug free!

10. Feet & ankles joint must be perfectly straight (no rotating feet outward). We’re lifting weights not performing ballet.

11. You must nasal breath throughout. Zero mouth breathing allowed.

12. Post on story or normal post & tag me. You have 48 hrs to complete!

There should be ZERO pain during or after or else you did it wrong.

Thousands of people around the world switching to 90 deg EI & experiencing near miraculous results including healing of injuries & pain. God gets all the glory.

More in my 2 FREE books & Right Angle Podcast on YouTube & Spotify.

Offset Loading!! My 2 Free Books explain all my methods. Link bio. https://www.advancedhumanperformance.com/mind-body-spirit-redefined

Here are college & pro athletes JT Byrne, Jordan, Clara, Brandi, Imani, and Antoine on a full body offset workout.

Go barefoot or wear barefoot shoes like Vivobarefoot 25% off code DRJOEL25OFF.

New research shows offset loading boosts athletic performance, muscle function, strength, muscle growth, stability, core activation, injury prevention, & cognitive benefits.

More in my 2 FREE books.

References:

1.Buscà, B., Arboix-Alió, J., Baraut, C., Arboix, A., & Aguilera-Castells, J. (2025). Offset Loading Influences Core & Bench Press Peak Prime Mover's Activity in Athletes. Journal of functional morphology & kinesiology, 10(2), 180. https://doi.org/10.3390/jfmk10020180 .

2. Sharp, M., Ottinger, C., Gheith, R. et al. Effects of Offset Loading vs Traditional Loading in Bench Press on Muscle Thickness & Strength. J. of SCI. IN SPORT & EXERCISE 5, 302–313 (2023). https://doi.org/10.1007/s42978-022-00200-1 .

3. Jarosz, J., Gołaś, A., Krzysztofik, M., Matykiewicz, P., Strońska, K., Zając, A., & Maszczyk, A. (2020). Changes in Muscle Pattern Activity during Asymmetric Flat Bench Press (Offset Training). International journal of environmental research & public health, 17(11), 3912. https://doi.org/10.3390/ijerph17113912 .

4. Gürbüz, E., & Taş, M. (2025). The Effect of Offset Strength Training Applied to Lower Extremities on Balance Performance in Football Players. International Journal of Sport Culture & Science, 13(3), 429-437. https://izlik.org/JA86HZ56WF .

5. Yan, B., Yao, S., Zhang, J., Li, C., Han, T., Hu, Q., & Lv, K. (2025). Effects of asymmetric load bench press offset training on muscle activation collegiate bodybuilders. Frontiers in physiology, 16, 1592477. https://doi.org/10.3389/fphys.2025.1592477.

6. Saeterbakken, A. H., Solstad, T. E. J., Behm, D. G., Stien, N., Shaw, M. P., Pedersen, H., & Andersen, V. (2020). Muscle activity in asymmetric bench press among resistance-trained individuals. European journal applied physiology, 120(11), 2517–2524. https://doi.org/10.1007/s00421-020-04476-5

7. Chen S, Yang S, Zhang X, Ye J, Feng S, Huang W and Liang W (2026) Offset loading in hexagonal bar deadlift: a ‘stealth’ strategy for acutely modulating neuromuscular activation asymmetry and enhancing acute jump performance. Front. Physiol. 17:1768828. doi: 10.3389/fphys.2026.1768828 https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2026.1768828/full

The Bible & Science. My 2 FREE books explain everything at link bio or https://www.advancedhumanperformance.com/mind-body-spirit-redefined.

What’s the crazy connection between strength training, the Holy Spirit, proprioception, the Bible, & exercise science? They’re very similar only one deals with the physical world & the other deals with the spiritual realm. Because God made our minds, bodies, & spirits, we know they work in harmony with each other while also mirroring each other. By learning about one it tells us much about the other.

The Bible consistently uses physical & physiological analogies to drive home spiritual messages. However those same analogies also have direct application for our physical bodies as well as our minds. By connecting the dots we see further proof that the Bible & science always confirm each other. And when they don’t line up, we know the science will eventually catch up, just give it time.

Proprioception is a fancy word to describe our sense of feel during movement. However we also have a form of spiritual proprioception known as the Holy Spirit that teaches us about sense of feel in the spiritual realm. God gave us both for a reason. The more we learn about one the more it informs us about the other. Understanding this connection not only helps us live better spiritually for God’s kingdom but also maximizes our physical potential not just for our strength training, fitness, & exercise, but also for joint health & injury prevention.

The Bible says in 1 John You won’t need any man to teach you for the Holy Spirit will teach you. The same applies to physical training.

This is where 90 degree eccentric isometrics come in as they maximize our proprioception & sense of feel ultimately allowing us to fine-tune our movement, modify our technique, & master our movement. But to gain the Holy Spirit in the spiritual realm requires one thing, namely becoming Born Again.

My FREE book Mind, Body, Spirit – Redefined explains all.

Full Podcast episode on YouTube & Spotify.

Barefoot shoes code DRJOEL25OFF.