The Science
How OsteoStrong triggers new bone growth.
What is osteogenic loading?
Osteogenic loading is a specific kind of force applied to your skeleton that signals your body to rebuild bone. "Osteo" means bone. "Genic" means to create. When bone experiences a load heavy enough to slightly stress it, your body responds by laying down new bone tissue to make that part of the skeleton stronger. This is Wolff's Law, the 130-year-old principle that bone adapts to the forces placed on it.
The challenge has always been producing those forces safely in someone who cannot squat 400 pounds.
Why 4.2 times your body weight matters.
In a landmark study of adults who train with very heavy resistance (Deere et al., cited across the osteogenic-loading literature), researchers found that bone adaptation begins at approximately 4.2 multiples of body weight. Below that threshold, bone is maintained. Above it, bone density begins to rise.
For a 150-pound woman, 4.2x body weight is about 630 pounds of force. She cannot safely produce that with a barbell, a yoga block, or a weight machine.
How we help women safely reach those loads.
Our four Spectrum devices (chest press, core pull, leg press, vertical lift) are robotic force plates, not weights. Instead of lifting a load, you push against a fixed, immovable resistance. The devices measure the force you produce in real time, so you only generate the load your body chooses to generate, and never a pound more. A coach is with you every session to cue posture and ramp you up gradually.
The result: a 72-year-old woman can safely produce 4x to 7x her body weight of force, typically well above her personal osteogenic threshold, in a 15-minute session. No barbells. No impact. No fall risk.
