
banku don
Iron
- Joined
- Aug 29, 2025
- Posts
- 55
- Reputation
- 71
I saw this as a comment on a YouTube video I was watching, can't understand shit tbh, would be glad if someone can explain and also verify if this works
Ok based of the properties of bone:
Assuming: the shaft of the femur is 13.2in (34cm) long and for the tibia is 10.5in (27cm) long, and their respective cross-sectional areas are 0.5sq-in (3.2 cm^2) and 0.06sq-in (0.41 cm^2), and assuming the modulus of tension is 24GPaBy pulling the bones with a force of 10lb (4.5kg) they should stretch by approximately 0.0005 inches (0.013mm)If you induce microfractures before bed and after you wake up they're fully healed at the new length, and you repeat this for a year at the end you will be 0.20 inches taller (5cm)pretty cool if you ask me
Some extra notes:
- this relationship is linear, so if you double the force, you double the gains, in theory
- bones adapt to the loads placed on them, so after a while doing this they may get stiffer, making gains more difficult, so in theory there would be an optimal force but there is literally zero data for this bullshit
- as humans age their bones get more brittle (stiffer), this is attributed to the loss of collagen in the bone, so maybe collagen-maxxing could be helpful in this area (as well as aiding bone recovery
- some sources list leg bone stiffness as low as 230MPa, if this were true daily gains could be as much as 0.056in (1.4mm), that means yearly gains of 21in (53cm), quite ridiculous if you ask melastly, this is all just a bullshit theory with zero proof, tho the numbers do add up
Ok based of the properties of bone:
Assuming: the shaft of the femur is 13.2in (34cm) long and for the tibia is 10.5in (27cm) long, and their respective cross-sectional areas are 0.5sq-in (3.2 cm^2) and 0.06sq-in (0.41 cm^2), and assuming the modulus of tension is 24GPaBy pulling the bones with a force of 10lb (4.5kg) they should stretch by approximately 0.0005 inches (0.013mm)If you induce microfractures before bed and after you wake up they're fully healed at the new length, and you repeat this for a year at the end you will be 0.20 inches taller (5cm)pretty cool if you ask me
Some extra notes:
- this relationship is linear, so if you double the force, you double the gains, in theory
- bones adapt to the loads placed on them, so after a while doing this they may get stiffer, making gains more difficult, so in theory there would be an optimal force but there is literally zero data for this bullshit
- as humans age their bones get more brittle (stiffer), this is attributed to the loss of collagen in the bone, so maybe collagen-maxxing could be helpful in this area (as well as aiding bone recovery
- some sources list leg bone stiffness as low as 230MPa, if this were true daily gains could be as much as 0.056in (1.4mm), that means yearly gains of 21in (53cm), quite ridiculous if you ask melastly, this is all just a bullshit theory with zero proof, tho the numbers do add up