First of all, fall detection is not and never will be perfect. I would say that of all the fall sensors I have seen the best ones predict falls somewhere in the 90-95% range. 90-95% is great unless you are part of the 5-10% then it's not so great.
Fall sensors come in two types of technology, the first and most basic is a tilt switch. A tilt switch is best worn on the belt and will send a signal for help if the pendant tilts past a certain degree. This unit is good because 100% of the time it will send a signal when it tilts past that degree mark, bad if for some reason a fall occurs and the client doesn't fall to that degree i.e. passing out and falling against a wall or into a chair. The second technology is more advanced as it will detect a change in altitude as well as the speed of that change. A quality fall sensor will be able to tell the difference between somebody passing out and subsequently falling to the floor and somebody bending over to tie their shoes. With this technology there are more false positives along with a higher chance of a slow fall failing to register and send a signal.
Any fall sensor should have a panic button with it as well so that the client can summon help in the event they are still conscious. Most fall sensors will allow a 30 second to 4 minute window to allow the client to get up and start moving around. Some will even send two signals, one that says the client has fallen, and one that says the client is not moving.
The technology is getting better every year and I get excited to see where it will be in 5-10 years, I know, I know, I'm a dork. Contact me or any of your local providers to see the latest systems, they might just save a life.
We recently received a new fall sensor that I had the pleasure of testing. The results were impressive and the girls thought it was funny to watch me fall repeatedly (see photo). Another good thing that came from my practice fall was a discovery of the dirty carpet. I had the carpet steamed cleaned the next day.
