The Geriatric Acute and Post-Acute Fall Prevention Intervention (GAPcare) II to Assess the Use of the Apple Watch in Older Emergency Department Patients With Falls: Protocol for a Mixed Methods Study

Daniel H Strauss, Natalie M Davoodi, Margaret Healy, Christopher L Metts, Roland C Merchant, Swechya Banskota, Elizabeth M Goldberg, Daniel H Strauss, Natalie M Davoodi, Margaret Healy, Christopher L Metts, Roland C Merchant, Swechya Banskota, Elizabeth M Goldberg

Abstract

Background: Falls are a common problem among older adults that lead to injury, emergency department (ED) visits, and institutionalization. The Apple Watch can detect falls and alert caregivers and clinicians that help is needed; the device could also be used to objectively collect data on gait, fitness, and falls as part of clinical trials. However, little is known about the ease of use of this technology among older adult ED patients, a population at high risk of recurrent falls.

Objective: The goal of this study-the Geriatric Acute and Post-Acute Fall Prevention Intervention (GAPcare) II-is to examine the feasibility, acceptability, and usability of the Apple Watch Series 4 paired with the iPhone and our research app Rhode Island FitTest (RIFitTest) among older adult ED patients seeking care for falls.

Methods: We will conduct field-testing with older adult ED patients (n=25) who sustained a fall and their caregivers (n=5) to determine whether they can use the Apple Watch, iPhone, and app either (1) continuously or (2) periodically, with or without telephone assistance from the research staff, to assess gait, fitness, and/or falls over time. During the initial encounter, participants will receive training in the Apple Watch, iPhone, and our research app. They will receive an illustrated training manual and a number to call if they have questions about the research protocol or device usage. Participants will complete surveys and cognitive and motor assessments on the app during the study period. At the conclusion of the study, we will solicit participant feedback through semistructured interviews. Qualitative data will be summarized using framework matrix analyses. Sensor and survey response data will be analyzed using descriptive statistics.

Results: Recruitment began in December 2019 and was on pause from April 2020 until September 2020 due to the COVID-19 pandemic. Study recruitment will continue until 30 participants are enrolled. This study has been approved by the Rhode Island Hospital Institutional Review Board (approval 1400781-16).

Conclusions: GAPcare II will provide insights into the feasibility, acceptability, and usability of the Apple Watch, iPhone, and the RIFitTest app in the population most likely to benefit from the technology: older adults at high risk of recurrent falls. In the future, wearables could be used as part of fall prevention interventions to prevent injury before it occurs.

Trial registration: ClinicalTrials.gov NCT04304495; https://ichgcp.net/clinical-trials-registry/NCT04304495.

International registered report identifier (irrid): DERR1-10.2196/24455.

Keywords: Apple Watch; fall intervention; geriatric care; wearable technology.

Conflict of interest statement

Conflicts of Interest: CM is the developer of status/post through Infinite Arms, LLC.

©Daniel H Strauss, Natalie M Davoodi, Margaret Healy, Christopher L Metts, Roland C Merchant, Swechya Banskota, Elizabeth M Goldberg. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 01.04.2021.

Figures

Figure 1
Figure 1
Timeline of study duration. ED: emergency department; GAPcare II: Geriatric Acute and Post-Acute Fall Prevention Intervention II; RA: research assistant.

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