How it works, as machines.
Interactive figures for Optimal's services. Each one is a real, carefully built machine whose motion is the medical idea, driven by real numbers.
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Fig 1
The narrowing thermostat
Why a tiny rise in core temperature trips a hot flash after estrogen falls.
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Fig 2
Five cylinders on a bridge
How the InBody 580 reads water inside and outside your cells.
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Fig 3
The depot with a gate
Why hepcidin stalls iron pills, and how IV iron goes around the gate.
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Fig 4
The runner rig
How cadence moves where your foot lands, how much you bounce, and the load behind your kneecap.
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Fig 5
The ramp and the mask
A VO2max ramp on a bike with a wireless mask: oxygen climbs with the watts until it hits your ceiling.
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Fig 6
The treadmill ramp
The same VO2max test on the Creator 600: a wireless mask, the belt speeding up, the assessor's tablet.
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Fig A2
The hot-flash switch
Inside the hypothalamus: why less estrogen leaves the brain's heat-loss centre on a hair trigger.
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Fig A3
The finger's heat valves
Inside the +2.7 °C: tiny shunts in the skin open and warm blood floods the surface.
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Fig A4
The beating heart
Four chambers, four valves, one beat: how the heart's output climbs from rest to all-out.
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Fig A9
Digging and filling
Bone is always being renewed; with less estrogen the digging outpaces the filling.
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Fig A7
The kneecap's load
Inside the knee on each landing, and why a quicker step rate eases the kneecap.
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Fig A8
Water in and around the fibres
Where InBody's ICW and ECW actually sit, and why a high ratio doesn't say why.
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Fig A6
The red cell's 120 days
Why ferritin jumps in days after IV iron but hemoglobin takes weeks.
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Fig A5
The air sac and the red cell
A block of lung cut open: why a red cell fills with oxygen in a quarter-second, and still has time to spare when you run.
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Fig A1
The gut cell's gate
A block of gut lining: iron in through the brush border, out through ferroportin, and hepcidin pulling the gates in.
Equipment, taken apart
The clinic's machines, built part by part from their published dimensions. Turn each one, take it apart, or play its film.
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Fig E1
The InBody 580, taken apart
114 parts from the published dimensions: eight electrodes, four frequencies, twenty readings.
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Fig E2
The Creator 600, taken apart
100 parts: a depth camera under a 50-inch portrait screen that tracks your joints as you run.
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Fig E3
The KICKR Bike, taken apart
149 parts: a belt-driven flywheel, an electronic brake, and a five-point fit. Grade is simulated; the frame never tilts.
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Fig E4
The hand dynamometer, taken apart
A sealed hydraulic path from handle to dial, and the needle that keeps your best squeeze.