This is a response to the forum thread “Naturalheightgrowth Is wrong about LSJL” posted by longlegs. In this field and niche of research, there will always be doubters.

His/Her Original Post

The author of naturalheightgrowth.com made a publication on why LSJL would not work.

Source: Evidence That The LSJL Method Or Loading Is Ineffective In Post-Pubertal Adult Humans? (Important)

The author concludes that LSJL will not work because the the cartilage growth would need to work against the solid bone of the Periosteum. However the Periosteum has always covered the growth plate in the per-ossification stages.

Thus, if if the author of naturalheightgrowth is correct about this theory, then that would mean that it would be impossible for children to grow(which is clearly incorrect).

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My Response To Their Claims

I note that every time someone puts up a link to the website anywhere, I am informed. I do spend some time to read all of the people’s concerns and questions. I will try to answer these people as well as I can.

• First, that posting was written last year, when my knowledge was not as advanced. My opinions have changed on that subject.

• Second, someone said that ‘a lot of success stories’ comes from using LSJL with results. Can any of you name even 9-10 people who have seen results at least by 2 cm? I make the cut off at 2 cms because 2 cms is probably enough of a gain to consider that it was not just from measurement error of the gain from hair, and different posture. For it to be “a lot” At least a dozen cases where something similar happened should be available.

• Third, I have asked Tyler to write for the website and you guys can notice that the 2nd to the most recent post about Acupuncture Lasers was his.

• Fourth, can any of you explain the exact mechanism how the chondrocytes can push in all 3 dimensions outwards due to hypertrophy and make the bones actually expand volumetrically. THIS EXACT ISSUE was (and still is) the main concern I have with the method. I wrote two  posts months ago playing devil’s advocate to make sure that I stay as objective and scientifically accurate as possible. Refer to them below…

• Post #1: How Lateral Synovial Joint Loading Works To Increase Height From Non-Distraction: FAQs and Concerns Answered (Guest Post)
• Post #2: Why LSJL Might Not Work, An Explanation Using Bone Mechanics And Bone Bridge Studies

Tyler made the correct point that children can grow because the chondrocytes expand and push the entire cartilage matrix upwards, and that has the cartilage pushing against bone tissue on both sides, but that is just in 2 directions out of a total of 6. One can simplify the bone-cartilage-bone schematic as a cylinder with three parts connected. However, in that configuration, the layer of cartilage is surrounded by bone on only 2 Directions, up and down.

When there is no cartilage, the MSCs in the epiphysis is essentially trapped and surrounded completely by bone. It would have to be pushing against cortical bone tissue in all 6 directions, up, down, left, right, front, back.

Think of it this way. Imagine that you are the growth plate itself. If there is only a wall of bone above you and below you, you can push upwards and whatever is on top of you would get raised up to a higher height since the upper wall is not connected to the lower wall.

Refer to the picture of Zydrunas Savickas from the Strongest Man Competition taken from VikingStrength.com. That log above him is indeed very heavy but he can push it up with great effort. Remember, imagine that you are the growth plate itself.

If however you are surrounded also by the same type of hard material that forms the wall that is above you and below you, and all the walls are connected, can you still push the wall above you and below you apart?

That is what happens when the growth plate gets fractured a bone bridge develops between the bones above and bellow the cartilage.

It would take probably at least 10X more power to push the bones apart from each other when the bone layers are connected, even with one bone bridge.

I don’t remember how to do the exact calculation to figure out what multiple of extra energy would be needed to push apart the external environment when one object is completely surrounded and trying to expand (ie hypertrophize). I do know that it is related to the Material Science principle of Surface Stress.

The first part of the calculation is very easy. You are calculating for energy, E, which is just Force times Distance in a cylindrical configuration, where the setup is solid-space-solid which actually represents bone-cartilage-bone in a very simplified physics model. Imagine yourself pushing upwards on a round surface. Multiple Force over a distance, assuming distance is just half a cm, 0.5 cm.

The 2nd part is the one I don’t know how to do. Imagine that you are pushing outwards in a spherical shell against a layer of the material, with a certain thickness (delta_r), material strength, and for the same change in distance, 0.5 cm. Never forget that you are calculating for something that is 3-Dimensional so the picture to the right is not completely accurate on the exact model you are trying to calculate for.

Based on my assumptions, if the MSCs did indeed differentiate into chondrocytes in the epiphysis (which we can induce in multiple ways), and they did start to expand in size (which we can probably also induc), what will most likely happen is that the cells won’t get too big. The moment the cells reach the cortical bone layer, they will come across randomly packed hydroxyapatite crystals which tend to have very sharp edges. The result is that a good proportion of the chondrocytes that are pushing outwards will have the outer membrane punctured by the hard crystal edges, like a knife to a balloon.

I am not saying that Tyler is a liar. I just can’t explain why or how he managed to get the height increase that he did using basic physics principles. If he did increase in height after he started to do the method, then somehow he has been succesful in an endeavor that millions of people around the world having been hoping for. I support him and his work for this website and all the work he has done. Very early on in the growth of this website, almost exactly a year ago, I thanked his effort and research which he has been doing for over half a decade “Thank You Tyler Christopher Davis aka Minigolf Of HeightQuest.Com“

Tyler’s Comments: I don’t think the hard crystal edges are an issue to LSJL as I mentioned in a post.  As for the statement that a microgrowth plate would have to work much harder against 6 directions than a standard growth plates 2, I’ve looked for information regarding the force required to push the tissue apart and I think a good model would be to look at adipose tissue as that is the most easily expanding tissue and is in the bone.  But I have not been able to find information on growth plates and how much force each cellular process generates and how much force is required to generate each percentage of growth.  That information would be ideal but I think adipose tissue may have some answers.