BellyProof Muscle


Skill Development

Happy new year! This is a brand new release and it is just the beginning:

More content is becoming available to members over the next few days and weeks. Enjoy 🙂

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Human Flag Progressions High Level

  • Firming for the Lats, V-Cut
  • Great for lateral stability and posture.
  • Very cool and impressive movement
Access Skill

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SpiderWalking Demon Medium Level

  • Strength building for the deep spine and the entire posterior chain
  • Co-ordination building
  • Firming for the shoulders and triceps

coming soon

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Tuck Planche Medium Level

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QDR Medium Level

coming soon

One Arm Hanging Variations Basic Level

  • Scapular Control, Grip Strength and Shoulder Control
  • Benefits all hanging work including pulls-up and L-holds.

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Wrists & Ankle Mobility Medium Level

  • Build long term mobility and strength
  • Stem cells theory applications
  • Great if you are still convinced you have flat feet

Access Mobility Training

L-Hold Progressions Basic Level

  • Easily integrated into other movements.
  • Firming of the Abs & Lats
  • Grip strength

coming soon

Elbow Lever Basic Level

  • Easy and Impressive
  • Great for your wrists

coming soon

Pistol Deck Squat Medium Level

  • Great for the ankles and knees
  • Firming for the quads

coming soon

The Workouts

Workouts designed to build serious muscle. We are adding even more workouts in the next few weeks so keep an eye 🙂

Workout #1

Building for Quads and Lower Abs

Other Benefits:

  • Skill Development: Pistol Squat, Pelvic Control
  • Promotes Ankle Mobility, Hips Mobility and Anterior Core Strength

Equipment Needed: Sliding Surface (i.e. socks on carpet etc..), 1 medium free weight

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Workout #2

Building for Gluteus & Quads (bum and front of thighs)

Other Information:

  • Sculpting the V-Cut (Adonis belt)

Equipment Needed: Sliding surface (socks on wood etc..), 2 free weights (dumbbells / kettlebells) that you can hold (one heavy, one medium).

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Workout #3

Building for Biceps & Six-Pack Depth (high level)

Other Benefits:

  • Back Lever
  • L-Sit Skill
  • Shoulder Extension Mobility

Equipment Needed: Gymnastic rings, Yoga cable (medium strength)

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Workout #4

Biceps, Hamstrings, Gluteus

Other Benefits:

  • Great for your hip mobility.
  • Skill building towards 1-Arm Pull-Ups and the Splits

Equipment Needed: Rings and  Pull-up Bar (optional)

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Workout #5

Building for Quads, Gluteus & Outer Thighs + Obliques (optional)

Other Benefits:

  • Great for lateral stability, single leg stability and knees.
  • Helps the human flag movement.

Equipment Needed: Heavy weight Barbell, one medium free weight.

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Workout #6

Building for Triceps, Shoulders and Upper Chest

Other Benefits:

  • QDR Skill Development

Equipment Needed: Gymnastic rings, Light-Medium Dumbbells, Pully Machine or a Yoga Band.

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Workout #7

Building for Chest, Triceps, Quads and Six Pack

Other Benefits:

  • Skill Development: 1-Arm Push-up, L-Holds
  • Promotes Knee Health

Equipment Needed: 1 medium free weight of any kind, 1 barbell or abs roller, pull-up bar.

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The Science

  • Taking advantage of the full potential of eccentrics to maximize on mechanical stress (almost impossible with traditional lifting).
  • Well round-up system with options to build, increase firmness & strength or both. Optional integration for fat loss.
  • Develop mobility, better posture and strength in movement (calisthenics style).
  • Fun, effective and adaptable for consistent improvement in the long term.



Even though research into this matter is on going at all times, we all know that there are better and worse ways to build muscle mass.
The exercises most people do, consist mainly of two phases. The concentric phase (which we like to call the way up), and the eccentric phase (which we like to call the way down).
Now this is true to whether you use body weight calisthenic exercises like a pull-up, as well as weight lifting exercises like deadlifts, biceps curls and virtually any other fitness exercise you see in the gym. What goes up must come down.

Both the way up and down are done with the exact same weight. So if you weigh 150 pounds: when you do a pull up, 150 pounds goes up, and then 150 pounds goes down. If you’re deadlifting 100 kilos: that’s a 100 kilos bar going up, and a 100 kilos bar going down.

And how strong are you? Can you lift 60 LBS, 90 LBS or 200 LBS? Whichever is the right answer – we can all agree that the maximal amount of weight you can lift up is your 100%.
And that is exactly the problem. See, while you can lift a maximum 100% on the way up, you can actually control up to 175% on the way down. Yup, you are up to 1.75 times stronger on the eccentric phase. You might already know that, and if you don’t, you should probably google that.

But – should you care?
When training for both strength and for muscle gain the eccentric phase matters far more than the concentric phase. This is where we get high threshold muscle fiber recuirtment, micro-trauma to the muscle fibers, this is where we do “time under tension” and where we go “slow and controlled on the way down”.
In fact, it is the eccentrics that provides the mechanical stimulus, via the mTOR pathway to synethises new protein and essentialy build more muscle. It’s the eccentrics that strenghen your ligaments and add collegen into fibers. It’s the eccentrics that allows motor control aquisition and the expansion of your mobility. So.. yeah – the eccentrics matter a lot!

There are of course other factors like protein rich nutrition or stressing the muscle metabolically with lactic acid and pumping, it’s all relevant. However, most experts agree that the quality of eccentrics we achieve in training factors for most of the results, so if you want to get big results, you need to get big on eccentrics.

The way most of us workout, is by choosing loads around 60% and do 3 sets of 8, 5 sets of 5 or something along those lines. Essentialy, trying to balance the volume of work with how much fiber recruitment and muscle damage we can get. We almost never use 100% because that will burn us out too quickly and we won’t be able to do many sets and reps.

60% concentric means 34% of your actual eccentric capacity.

This doesn’t mean you’re lazy or you don’t train hard, it just points to the simple fact that 34% is inefficient for what you are trying to do.

Arguably, it would be much better if you could figure how train at 60% on the way up and something along 140% on the way down. That way you’ll get much better at stimulating protein synthesis which will help you build muscle faster.

Luckily, there are clever ways to solve the eccentric problem



Solving this problem would be great as it would translate into faster and more efficient muscle building than most of us have ever experienced. There are 3 general ways we can solve this problem:

1. The crazy spotter

You will need what is the maximal load for a certain lift, go for around 60% on the way up (concentric) and around 140% on the way down – repeating it for around 10-15 times for small muscles and 20-25 times for larger muscles over a few sets.

  • Grab 0a training partner / personal trainer and introduce them to the concept. Their job would be to take 40% off the maximal load on the way up (leaving you to do 60% on your own), and adding about 80% to the top of the lift (leaving you to control 140% on the way down).
  • Make sure you do it safely, you can’t push more than your 100% on the way up and you need to be able to release those weights safely if it gets a bit too much because you won’t be able to push them, only lower them (which is what you’re after).
  • Your training partner needs to be strong enough to support the weights, they need to be focused and this will require a measure of patience.


  • Anyone can do it if they’ve got the right setups and the right partner for it.
  • Can be done correctly nearly on each and every exercise.


  • You can’ do it on your own, you must train with someone for that.
  • They will need to help you on each and every rep. If you don’t need their help on each repetition on the way up, then you’re not working at the right intensity (remember, you are trying to work around 40% above your max intensity),
  • Not only training with weights traditionally doesn’t expand your skill and movement, it often restricts you and makes you very stiff by allowing you “easy levers” to develop the mid-range. This type of training tends to restrict the end range of motion.

2. Manipulation of Bilateral vs Unilateral.

unilateral trainingSome setups allows you to use both sides of the body (bilateral) on the way up, and switch to one side of the body (unilateral) on the way down. Since you are putting far more load on the respective side on the way down, you get the full benefits of proper eccentric training.

Let’s say you can only do 10kg biceps curl with your left arm. What you would do then is take 12-14kg (which you cannot lift as in this example your max is 10kg). On the way up, your right hand (which is free of any weight) will help to support the weight further on the way up. On the way down, for a good amount of time of about 6 seconds, you will have to do it just with the left arm, taking away any support from the right.


  • This can work great in some setups (where you can do unilateral training via free weights or machines) as long as it’s an isolation exercise. As soon as you involve too much complexity, it starts involving the rest of the body. You can argue that complex exercises are better but you can’t do 140% on one side of your body if your entire system is involved.
  • You can do this without any help from anyone else – which is awesome.
  • We actually use it to a small extent in our program.


  • There’s only a handful of exercises you can do like that properly. It’s a good way to do it but you won’t be able to do it for your entire body.

3. Position Position Position – with and without weights.

Sometimes, a small change of position, angle or lever is all it takes to ramp up the intensity on the way down.

  1. We can “climb” the way up, and control the way down. For example, if you couldn’t do a pull up, you could climb on a box to get to the top, then do just the way down. If you could do a pull-up already, you could use the same mechanisms with added weight or use the previous unilateral concept on the way down.
  2. We can change the lever. The smaller the lever (when your arms and legs are close to your body), the easier the load become. For example, if you hanged vertically from a bar and got your knees close to your chest. That’s a tough position but a very easy lever. That could be the way up. Then, by extending the knee (while fighting to keep the hip angle) you are extending the lever and increasing the intensity. That fight against gravity (and ultimate failure) is the way down. This is one of the bigger concepts behind calisthenics and gymnastics and by applying principles of mechanical stress followed by metabolic stress, we can use it to also build muscles at the same time at an increased pace.
  3. Sometimes, you could even use weight to come up in one direction (that’s easier – i.e. the 60%) and come down from a different angle which is harder (i.e. the 140%). For example, you could front-raise a weight on the way up, and go back via a path of a unilateral raise (which is harder), resisting the heavy weight on the way down.


  • This is the approach we use in 99% of the muscle building program. It’s creative, it’s challenging and it’s fun. Most of all – it works to create the best mechanical stress on the muscles safely and effectively – and this is the biggest factor in protein synthesis when building muscle.
  • Not only this is an amazing technique to build muscle mass (if followed properly with metabolic stress), it’s also a skill-builder. It allows you to get motor control, learn movement and build strength in some of the most complex movement skills. It’s great for your connective tissues as well. The best news is that you can’t take it back, when you have developed a skill like this, you are probably going to keep it for a lifetime. Whatever muscle and skill you earn this way, you get to keep.


  • Well, this require creativity and knowledge when planning – but this is hardly a bad point 🙂 Anyway, this is part of the reason the program took so long to plan, film and put online but now that it’s ready, you don’t have to come up with all the techniques yourself. You can just enjoy it and all the benefits it brings.

How to Build Muscle Faster

There are a few elements that will dictate how fast and how well your efforts in training will translate into results. Let’s have a look:

Mechanical Stress and Damage to the Fibers how to build muscle faster

The more microscopic trauma you inflict on muscle fibers, the more the body will have the stimulus to build bigger and stronger muscles. Your body responds to the stress (i.e. the time under tension and amount of tension you have used) by building the muscles to better handle this tension in the future. In practical terms, we are also talking about registering the tension, fiber recruitment and other factors and drive a few elements that will eventually result in new protein synthesis and the laying down of new protein filaments – called actin and myosin). The hypertrophy of these myofibrils often receive the name “Myofibrillar hypertrophy”

This is primarily happening during the eccentric phase (covered above in details). Most experts agree that the slower the eccentrics are, the greater the time under tension will be. Intensity wise, most experts would agree that the optimal intensities fall between 100%-175% which demonstrate the need to increase the loads during the eccentric phase for maximal results.

mTOR Signaling and Activation

The mTOR pathway is one of the cornerstones of protein synthesis. The mechanical damage will translate into a number of biochemical reactions, at the end of which we get photostatic acid and mTOR activation.

There are a number of factors that will determine how much mTOR signaling we get and how much new protein we can synthesize. Nutrition also plays a role with BCAA (and primarily the amino-acid Leucine) playing a big part. There are other tricks (some more proven and some less) that can effect this pathway one way or the other but the greatest and surest way to achieve more activation of the mTOR pathway is to optimize mechanical damage. With greater eccentrics comes greater mTOR activation.

Metabolic Stress

This is easier to achieve and while the mechanical stress if far more important, metabolic stress still plays a big role.


When we engorge the muscle fibers with blood, we are creating internal stress. The body responds to the stress by allow the muscles to accommodate larger volume of fluid (blood is fluid after all). We call that process “Sarcoplasmic Hypertrophy” or the hypertrophy of Muscle Plasma. One way our body responds to this stress is by increasing the amount of fluid itself in the muscle as well as strengthening the membrane of the fibers to sustain the new loads. The new volume of the muscle is what accounts in large for “size gains”. This is why we always looked bigger, when we are “pumped”, because we push blood to fill in the muscles.

One thing to be aware of is that “pumping” does create vascularity (when you can see someone’s veins). This is in part, how the body deals with the increased volume of fluids. It’s not a problem but may not be very desirable for some people so if you wish to avoid increases in vascularity, focus more on the mechanical aspects of loading and less on the pump.

Lactic Acid & CO2

This is an area where science is not too sure about the mechanism but there are enough evidence to show that the lactic burn (i.e. “feel the burn”) does eventually results in small contributions to muscle mass. The same is true for other metabolites such as Carbon Dioxide. This is not a proven correlation and could be due to the fact that lactic acids often build up along-side the pump, as we exhaust the oxygen in the muscle. It would be hard to say if the pump alone is enough to contribute to muscle growth or whether lactic acid is a needed factor.

The only thing we can say for sure is that the build up of lactic acid will result in fatigue. If you can work longer before feeling the burn, you would be able to enjoy the mechanical stress for longer. If your endurance however is impacted to a great degree by the presence of lactic acid in your muscle, you might have to cut your workout short. We think, “better safe than sorry”. Better introduce lactic burn into the process but only towards the end to avoid premature fatigue and early termination of the workout.

Recovery and Nutrition

There are of course, non-training related factors that will influence your results.

Protein Intake & Calorie Intakeprotein for muscle growth

It’s quite simple. Protein breaks down into amino acids which can then be utilized by the body to synthesize new protein in the muscles. Your body still needs the reason to synthesize that protein in the first place (i.e. mechanical stress and muscle breakdown). It’s hard to say exactly how much protein your diet should include as there are many different factors. From genetics to your gut health (and how much of it you can actually absorb). Telling you exactly how much protein you should take is impossible as it’s an inaccurate science with many factors to consider, very much like the faulty science of counting calories.

What we can say for sure is that high amount of protein does in fact correlate greatly with stimulating further protein synthesis. If you want to get an idea of how much protein you should aim for, you could look here (set your parameters and you’ll see an orange square floating at the bottom of the screen with how much protein you should aim for).

While we do know high protein intake helps, be aware that you could build muscle with medium intake of protein, with high fat, low fat, high carbs or low carbs. There’s just a great deal of variety in there. A good thing to aim for is a healthy balanced diet, with medium to low carbs, high protein in medium levels of fatty acids from different sources. Low carb, keto, paleo… there’s no one strict answer that would be good for everyone. This is also true on low calories vs high calories, you could build muscle on both if you make sure there’s high enough protein and balanced level of nutrients as long as correct exercise stimulus is there to facilitate protein synthesis.

Gut Health & Overall Hormonal Balance

One of the reason we stress gut-health protocols in all of our programs is that it’s still key to everything that happens in our body. If your gut is playing friendly, you will absorb protein better, enjoy higher levels of crucial hormones (such as testosterone and growth hormone) and you will be free to do the task at hand. If you gut health is poor, you will suffer immunity responses to training, increased inflammation, less of the beneficial hormones, less sleep, more cortisol and less absorption of the protein you take in.

Improving your gut health is key to do everything better, and you can start doing it today by reading our guide probiotics guide here.

Deep Sleep

When we say deep sleep, we don’t just mean “tuck yourself in bed for 6 hours”. We mean actually getting enough uninterrupted sleep in the deep state of brain activity called “delta waves”. You could get semi-reliable sleep tracking information from most fitness trackers out there (fit bit etc…) and we would encourage you to look into it.

We know a few things for sure:

  • There’s a lot of muscle building happening when we sleep and if you don’t take the time to get a proper recovery, you will not be able to build muscle. It’s great that you’re demanding new muscle from your body (via training and nutrition) but you also have to allow your body to do what you ask of it.
  • Your perception of how hard you train is directly influenced by how well you sleep. Your definition of “hard training” will be different if you recovery well and you would be able to squeeze more juice out of your workouts.

DOMS (Delayed Onset Muscle Soreness)

You all know that soreness feeling that sometimes follows training. When you get it, you instinctively know you’ve dome somethings good. But it’s not necessarily accurate and here’s why:

  • Generally, most people think that soreness correlates to muscle damage, even though many times you can do good work (that kind that drive results) and not be sore.
  • If you haven’t trained a certain body part for a long time, you could get some insane DOMS without actually doing good work.

Our take from this is that while muscle soreness can indicate heavy work to a certain extent, it shouldn’t be relied on to indicate progress or quality of work. In-fact, most people find that the presence of DOMS prevents them from training hard so there is a point in taking measure to reduce soreness after workout.

So far the best ways we can recommend here to reduce muscle soreness and allow you to feel in full strength for your workouts are:

  • Protein, Glutamine, BCAA and HMB supplements all help. Other supplements like cherry extracts, fish-oils and numerous others have some evidence behind them for reducing muscle soreness. This basically falls under the category good nutrition (with a few tweaks here or there) and you can experiment with that.
  • Far Infra-Red. This has been a relatively good experience and something that will be new to most people. You can get special clothing that reflects far-infrared (FIR) into the body, you can get bed sheets that do the same or even special far-infrared heating panels. This has been around for a long time and the idea is that it promotes blood circulation (as well as numerous other health benefits). In turn, that seems to really help with soreness and stiffness, just by wearing this type of garments. They are often expensive but well worth it.

Trigger Points and Foam Rolling

As surprising as it may be, smashing objects into your muscles when they are over-engaged is not only painful, it’s very ineffective. You are not changing anything in the muscles or the fascia by foam rolling them. What is however happening is the tricking of the nervous system to release neural tone. Only problem is, there are better – far more efficient ways to do it.

  • A better way to achieve a temporary reduction in “stiffness” is to contact the muscles into the object for a few seconds, and roll around as you relax. Going from sympathetic to para-sympathetic in the process. Muscles don’t have brains and the “stiffness” you describe is controlled by your nervous system sending an increased impulse to a certain muscle to contract and not let go.  This is explained in far more details in some of the skills. If we are going to “cheat” our nervous system into releasing some of that impulse, we might as well do it efficiently.
  • Simply smashing (rolling) an object into the tissue will eventually trick the nervous system to release tension but that’s a poor way to do it, it’s inefficient, time-consuming and won’t change anything in the tissue for the long-term. This is a huge subject on its own and I recommend you look google “Spina Foam Rolling” if you want to learn accurate information about it.
  • You can’t break “scar tissue” (fibrosis) by rolling on a surface and smashing the tissue with force. This is an old way of thinking which has been proven impossible a long time ago. You can however stimulate the fibroblasts to create new tissue by applying directional stimuli passively over a great length of time. This is all about regenerative processes and stem cells, directing the body how we want it to build tissues instead of letting it “patch” things over with scar tissue. We actively use this information in our training but we’ll not explore it within this article as this is a huge and massive subject on it own.

Enhancing the Look of Muscles

To enhance the look of muscle, you could focus your efforts in a few different ways.

Angular vs Round Muscles

While this would be inaccurate to say you can control this fully, it wouldn’t be incorrect to say you have a way to influence it. If you want more round (puffy) muscles, you could simply focus more on metabolic stress (which will increase the volume of plasma). If you wanted more “dense” angular muscles, you could shift your focus more towards the mechanical stress to make for denser muscle fibers (more protein synthesis). At the end of the day, you will need both type of stresses (metabolic and mechanical) and it’s possible to maximize both if you have the time to workout like we recommend. You can’t separate them completely but you can focus on one or the other to a certain extent.

Body Fat Levels

While this doesn’t change the muscles themselves, the level of body fat you’re holding will obscure or reveal more muscles. This is fairly straight forward (check our the body visualizer here, set it to muscular and see how the 3D shape changes with the different levels of body fat).

Of course, losing fat is essential to looking good, feeling good and being healthy. And isn’t that part of the reason you are building muscle? If you want to learn how to lose fat better, and especially stubborn fat (such as the one on your belly and love handles) then check out fat loss program, for an in-depth solution.

Muscle Firmness (TONE)

Many people confuse tone (how firm the muscle is) with pump (temporary filling of the muscle with blood, which makes it hard to the touch). True tone is a function of strength. Even the word Tone implies the same as tone=tonus=tension.

The best way to increase tone is to increase strength and especially angle-specific strength:

  • Eccentrics results in big strength gains and motor control gains. In this respect, eccentric training will help you increase your strength and your muscle tone greatly. Concentric however won’t do the same.
  • Isometrics training is the best way to increase muscle tone. There are a few types of isometrics and all of them are non-moving contractions (iso=equal, metrics=in length). That means there’s no lengthening or shortening of the muscles. If you were pushing a wall, it wouldn’t move, but you can still work hard in “isometric”. The same is true if you tried to hold a tough position, say hanging from a bar – there wouldn’t be any movement but everything will be contracting hard. By holding a high level contraction, your body will ultimately increase the amount of fibers it recruits at rest (which is what we call neutral tone). If your muscles at their resting state, are always slightly contracted, that will result in them being “firm” and hard to the touch. No flabby bits.
    Isometrics that are done at lengthened position have greater effects on strength in both lengthen and shorten position but the greatest strength increase will be at the angle the isometric is performed (with minor increases in strength at around 15 degrees each way from the worked angle).
    Because this is a very effective way to build high level of strength at specific angles, this is the most widely used techniques when learning how to control your body in various body movements that looks impressive and hard to do (the word calisthenics means “beautiful strength”). This is why we can hold many “seemingly impossible” positions while looking relaxed, because we turn them into positions of strength via isometrics. The transitioning in and out becomes the workouts, those specific positions almost serve as a bit of a rest.

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