Abstract NS18: Objective Fall Risk Detection in Stroke Survivors
Background: Stroke survivors fall up to 7 times more annually than healthy adults. Clinical and laboratory-based measures have failed to accurately predict falls/fall risk. A wearable mobile device for objectively detecting falls/fall risk in stroke survivors has recently been developed.
Purpose: Determine the feasibility of monitoring falls, fall risk and gait in naturalistic environments using a kinematic motion sensor (PAMSys™) in stroke survivors.
Methods: Feasibility study using PAMSys™ worn in a comfortable t-shirt to detect falls, identify posture (gait, sitting, standing, lying), postural transitions (fall risk indicators: duration in seconds, and number of unsuccessful attempts) and gait (steps, speed, duration). A questionnaire assessed acceptability of the PAMSys™. Stroke survivors (n=10) wore the PAMSys™ for 48 hours during usual daily activities, and were age-matched with controls (n=10).
Results: Stroke survivors were on average 70±8 years old and 42±25 months post-stroke. The majority were 60% Caucasian, 70% women, 70% college-educated, and 80% retired; reporting 60% ischemic stroke, 40% hemorrhagic stroke, 70% hemiparesis, and 70% 1st stroke. Stroke survivors (100%) reported that the PAMSys™ was comfortable to wear for the full 48 hours, did not interfere with normal everyday activities and were willing to wear it for another 48 hours. None reported any difficulty with the PAMSys™ while sleeping, removing/putting back on for showering/changing clothes or that it became wet/dirty. Although there were no falls during the study, when compared to age-matched controls, stroke survivors had significantly worse fall risk indicators and decreased gait duration (see Table).
Conclusion: Since the majority of fall-related events occur at home, the use of wearable mobile technology in stroke survivors may be essential to enhance recovery and prevent injuries. This device could be of use as an outcome measure in certain types of clinical trials.
Author Disclosures: R.E. Taylor-Piliae: Research Grant; Modest; Laurence B. Emmons Research Grant, University of Arizona #5330000-EMMRT, Principal Investigator, AHA National Scientist Development Grant #0930324N, Principal Investigator. B. Najafi: Research Grant; Modest; NIH-STTR Phase II Grant #5R42AG032748-03, Co-Investigator, NIH/NIA Grant #1R43AG042949-01, Co-Investigator. B.M. Coull: None.
This research has received full or partial funding support from the American Heart Association, National Center.
- © 2014 by American Heart Association, Inc.