IF they work. End of the day, bone density from activity is likely a function of area under the curve. Most people, even if exercising, are unlikely to accumulate very many hours. I only deadlift and squat for maybe 40 minutes per week. So a device that can simulate exercise or stimulate bone formation in a passive manner for multiple hours per day would be huge. And as you said, for people with injuries etc, there’s real value.
I’ve done some digging for extra information. On the product website https://osteoboost.com there’s a bit more information about a small trial they did to get FDA clearance.
TRIAL PARTICIPANTS; 126 postmenopausal women with low bone density (64 active, 62 sham). Average age: 61.4 (range: 52-82).
TREATMENT PROTOCOL; Participants were instructed to self-administer Osteoboost 30 minutes per day, at least 5x/week. Study was 12 months total.
SUPPLEMENTS: Participants were provided two supplements to take daily: vitamin D and calcium.
In terms of results, CT and DXA scans were used to evaluate changes in bone strength and bone density over the 12 months of follow-up.
Bone strength at 12 months:
The sham group lost strength (-2.84%)
The treatment group lost -0.48%, P = 0.028
Spine bone density (by CT scan):
-1.97% in sham vs -0.29% in treatment, P = 0.016
Hip bone density:
-1.35% in sham vs -0.61% in treatment, P = 0.19 (note: not significant, quite big error bars here)
Compliance overall was 80% (not very high IMO) and they ended up with only n = 73 patients included in the final CT scans, based on patients who had done at least 3 sessions per week. Some pretty obvious “fiddling” of the data there by excluding a bunch of people.
The write-up is here: https://www.osteoboost.com/wp-content/uploads/2024/12/Clinical-Study-White-Paper-M-Jaasma-Rev-1.0.pdf
There’s also a small paper published: https://academic.oup.com/jbmrplus/advance-article/doi/10.1093/jbmrpl/ziae104/7723941
And a letter to the Editor with researchers complaining about their crappy study, selecting only favourable data, and over claiming and aggressive marketing: https://academic.oup.com/jbmrplus/article/9/5/ziaf051/8106833
Overall I am not too sure what to think. If everybody did their 30 mins 5x per week, would it have got better results? Probably IMO. But they’ve clearly decided these results are good enough to then push marketing etc.
I can’t help but wonder whether a simply massage gun, massage ball, or similar can accomplish the same thing. I’m sure this thing is very over-engineered and apparently they’re charging $1,500 for it with a regular discount down to $995. It’s also a bit silly with the “NASA” marketing.