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https://hdl.handle.net/2440/124640
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Type: | Journal article |
Title: | An observational study investigating the use of patient-owned technology to quantify physical activity in survivors of critical illness |
Author: | Gluck, S. Summers, M.J. Finnis, M.E. Andrawos, A. Goddard, T.P. Hodgson, C.L. Iwashyna, T.J. Deane, A.M. |
Citation: | Australian Critical Care, 2019; 33(2):137-143 |
Publisher: | Australian College of Critical Care Nurses |
Issue Date: | 2019 |
ISSN: | 1036-7314 1878-1721 |
Statement of Responsibility: | Samuel Gluck, Matthew James Summers, Mark Edward Finnis, Alice Andrawos, Thomas Paul Goddard, Carol Lynette Hodgson, Theodore John Iwashyna, Adam Michael Deane |
Abstract: | BACKGROUND:Physical activity after intensive care unit (ICU) discharge is challenging to measure but could inform research and practice. A patient's smartphone may provide a novel method to quantify physical activity. OBJECTIVES:We aimed to evaluate the feasibility and accuracy of using smartphone step counts among survivors of critical illness. METHODS:We performed a prospective observational cohort study in 50 patients who had an ICU length of stay>48 h, owned a smartphone, were ambulatory before admission, and were likely to attend follow-up at 3 and 6 months after discharge. At follow-up, daily step counts were extracted from participants' smartphones and two FitBit pedometers, and exercise capacity (6-min walk test) and quality of life (European Quality of Life-5 Dimensions) were measured. RESULTS:Thirty-nine (78%) patients returned at 3 months and 33 (66%) at 6 months, the median [interquartile range] smartphone step counts being 3372 [1688-5899] and 2716 [1717-5994], respectively. There was a strong linear relationship, with smartphone approximating 0.71 (0.58, 0.84) of FitBit step counts, P < 0.0001, R-squared = 0.87. There were weak relationships between step counts and the 6-min walk test distance. CONCLUSION:Although smartphone ownership and data acquisition limit the viability of using extracted smartphone steps at this time, mean daily step counts recorded using a smartphone may act as a surrogate for a dedicated pedometer; however, the relationship between step counts and other measures of physical recovery remains unclear. |
Keywords: | Accelerometer Patient outcome assessment Pedometer Smartphone Step count |
Rights: | © 2019 Australian College of Critical Care Nurses Ltd. Published by Elsevier Ltd. All rights reserved |
DOI: | 10.1016/j.aucc.2019.01.009 |
Published version: | http://dx.doi.org/10.1016/j.aucc.2019.01.009 |
Appears in Collections: | Aurora harvest 4 Nursing publications |
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