Background Accidental falls are a
significant health risk to older adults and
patients seen in audiology clinics. Personal
emergency response systems are effective in
preventing long lies (defined as remaining on the
floor or ground for greater than one hour after a
fall), but some individuals would prefer to wear
less-conspicuous devices than a traditional
neck-worn pendant. No previous investigation has
compared the accuracy of head-worn fall detection
devices with those worn on other parts of the
body. In this study, we compared the accuracy of
one commonly used fall detection pendant with two
variants of a new hearing instrument-based fall
detection system.
Purpose The purpose of the study was to
evaluate the accuracy of detecting falls by using
inertial sensors embedded in hearing
instruments.
Research Design A study with repeated
measures for one group.
Study Sample Ten young adults served as
participants. All participants had normal or
corrected-to-normal vision during testing.
Individuals were excluded if they had
self-reported cardiac disorders, recent
concussions, or musculoskeletal
conditions.
Data Collection and Analysis Data were
collected from inertial measurement unit (IMU)
sensors, embedded into a binaural set of hearing
instruments, during laboratory-based simulations
of falls, near-falls, and activities of daily
living (ADLs). The detection state of a fall
detection pendant was simultaneously recorded
during performance of each trial and compared with
the outputs of offline hearing instrument firmware
emulators.
Results One hearing instrument-based fall
detection system was more accurate than the fall
detection pendant. A second hearing
instrument-based fall detection system performed
similar to the fall detection pendant. Each of the
three fall detection systems investigated were
robust against false-positive detections during
ADLs.
Conclusions Preliminary findings
demonstrate that hearing instruments embedded with
a fall detection device (FDD) may be a suitable
alternative to more traditional forms of FDDs
(e.g., pendant, wrist-worn device, etc.) for
detecting falls and potentially preventing long
lies.