Research Knowledge Bases

Hello! The above video demo is very outdated, but a new preview will be available soon!

(Unfortunately Unity has prevented me from uploading playable MVP’s on account of age).

What will be in the new preview?

  • Anatomically accurate (and shockingly expensive) body model with explicit pictures of moment arms and how they are measured

  • Vector visualizations and graphing for data analysis

  • Further complex motion (gimbal lock /axial conflation is problematic for ball/socket joint movement

What other than that will be in the full, published BioMachina v1?

  • Full incorporation of all the studies in the knowledge base documents

  • “Easy Mode” which will simplify motions and study interpretations for those new to biomechanics

How do the physics of this project work?

Vectors drawn from superior to inferior joints (or to bodily axis) are repeatedly multiplied to find the time in the joint-angle range of motion where the external moment arm peaks. The direction vector for motion is then multiplied with template vectors to find the path it most closely matches (peak dot product).

Based on the limb’s direction of movement, the angle at the time of peak external moment is cross referenced with anatomical studies on internal moment arms. Using neuromechanical matching, we then determine the muscle receiving the greatest relative stimulus.

Contact: lmaridgefield@icloud.com or machinabiodev@gmail.com for updated information about biomachina.

Neuromechanical matching is an expertimental theory that emphasizes the preferential activation of motor units,

but what does that mean?

To fully stimulate a muscle, one must recruit as many units as possible.

However, the CNS (central nervous system) can only do this for so many muscle groups.

Pursuant to neuromechanical matching, the muscles with best leverage (or greatest internal moment arm length) will be most recruited because they host the fibers best suited to exert torque.

As such, neuromechanical matching is a principle of efficiency. It does not state the prime mover—rather, it determines which muscle has the greatest number of its fibers recruited, and thus grows more.