3D/4D body motion scanners to detect changes in gait/flexibility/movement speed/flexibility over time?

#1

https://mitnano.mit.edu/immersed-seminar-series

There are so so SO many “health clinics” and none of them even use something as simple as that

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#2

I wonder if there is a well-defined walking / running phenotype for aging that could be easily used to help characterize your functional age and aging rate?

#3

osture

If you actually want to see whether your chiropractor’s handiwork is fixing anything instead of just funding their next vacation, you’ve got a few visual options:

1. Before-and-After X-rays or MRI

This is the gold standard, though pricey and radiation-y. If your chiropractor claims structural correction (like scoliosis angle reduction or vertebral realignment), you’d need identical-position imaging before and after a treatment block.

  • Compare Cobb angles for scoliosis.
  • Check cervical curvature (lordosis) or pelvic tilt on lateral views.
    If your “after” looks identical, congratulations—you’ve just funded a nice set of office plants.

2. Posture & Motion Analysis

Use a phone or posture-tracking app with consistent camera angle, distance, and lighting. Record from front, side, and back, standing relaxed.

  • Look at shoulder symmetry, hip height, spinal curvature, head-forward angle.
  • Better yet, get a motion capture app (like PostureScreen or Dartfish) to plot your alignment changes over time.

3. Surface Topography or 3D Scan

Some physiotherapy centers and researchers use 3D spinal topography scanners (e.g. DIERS formetric). They generate surface maps of the back and can quantify changes in curvature or rotation—no radiation, just lasers and your dignity.

4. Functional Metrics

If structure stays the same but you move better, that’s still progress:

  • Measure range of motion (cervical rotation, lumbar flexion).
  • Balance on one leg, gait symmetry, or pain-free movement tests.
    These are less about bones, more about how your nervous system integrates posture.

5. DIY Alignment Test

Stand against a doorframe: back of head, shoulders, butt, and heels touching. Snap photos monthly. If your head’s creeping forward less and your shoulders aren’t auditioning for the Hunchback reboot, there’s improvement.

In short: X-rays if you want proof; photos and functional tracking if you want sanity; 3D scanning if you want to feel like a cyberpunk patient.

#4

Based on the video titled “November 8, 2025” from the channel Stochastic Cockatoo, here is an analysis of its content:

The video, which is 1 minute and 12 seconds long, discusses the physics and ergonomics of sitting in a lower chair and how it affects the body.

Key Points from the Video Transcript:

  • Pressure Distribution: The speaker explains that using an even lower chair helps distribute some of the body pressure to the lower back [00:33].
  • Lower Pressure: The pressure over a given area is slightly lower, which is described as the “pressure over area” or “static pressure over area” being less [00:51].
  • Muscle Work and Shivering: Less pressure results in less work for the muscles, which the speaker notes prevents the muscle from shivering [00:58].

The video can be found here: http://www.youtube.com/watch?v=TwwIa4NcFys

http://googleusercontent.com/youtube_content/0

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