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mActive: A Randomized Clinical Trial of an Automated mHealth Intervention for Physical Activity Promotion
BACKGROUND: We hypothesized that a fully automated mobile health (mHealth) intervention with tracking and texting components would increase physical activity. METHODS AND RESULTS: mActive enrolled smartphone users aged 18 to 69 years at an ambulatory cardiology center in Baltimore, Maryland. We used...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4845232/ https://www.ncbi.nlm.nih.gov/pubmed/26553211 http://dx.doi.org/10.1161/JAHA.115.002239 |
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author | Martin, Seth S. Feldman, David I. Blumenthal, Roger S. Jones, Steven R. Post, Wendy S. McKibben, Rebeccah A. Michos, Erin D. Ndumele, Chiadi E. Ratchford, Elizabeth V. Coresh, Josef Blaha, Michael J. |
author_facet | Martin, Seth S. Feldman, David I. Blumenthal, Roger S. Jones, Steven R. Post, Wendy S. McKibben, Rebeccah A. Michos, Erin D. Ndumele, Chiadi E. Ratchford, Elizabeth V. Coresh, Josef Blaha, Michael J. |
author_sort | Martin, Seth S. |
collection | PubMed |
description | BACKGROUND: We hypothesized that a fully automated mobile health (mHealth) intervention with tracking and texting components would increase physical activity. METHODS AND RESULTS: mActive enrolled smartphone users aged 18 to 69 years at an ambulatory cardiology center in Baltimore, Maryland. We used sequential randomization to evaluate the intervention's 2 core components. After establishing baseline activity during a blinded run‐in (week 1), in phase I (weeks 2 to 3), we randomized 2:1 to unblinded versus blinded tracking. Unblinding allowed continuous access to activity data through a smartphone interface. In phase II (weeks 4 to 5), we randomized unblinded participants 1:1 to smart texts versus no texts. Smart texts provided smartphone‐delivered coaching 3 times/day aimed at individual encouragement and fostering feedback loops by a fully automated, physician‐written, theory‐based algorithm using real‐time activity data and 16 personal factors with a 10 000 steps/day goal. Forty‐eight outpatients (46% women, 21% nonwhite) enrolled with a mean±SD age of 58±8 years, body mass index of 31±6 kg/m(2), and baseline activity of 9670±4350 steps/day. Daily activity data capture was 97.4%. The phase I change in activity was nonsignificantly higher in unblinded participants versus blinded controls by 1024 daily steps (95% confidence interval [CI], −580 to 2628; P=0.21). In phase II, participants receiving texts increased their daily steps over those not receiving texts by 2534 (95% CI, 1318 to 3750; P<0.001) and over blinded controls by 3376 (95% CI, 1951 to 4801; P<0.001). CONCLUSIONS: An automated tracking‐texting intervention increased physical activity with, but not without, the texting component. These results support new mHealth tracking technologies as facilitators in need of behavior change drivers. CLINICAL TRIAL REGISTRATION: URL: http://ClinicalTrials.gov/. Unique identifier: NCT01917812. |
format | Online Article Text |
id | pubmed-4845232 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-48452322016-04-27 mActive: A Randomized Clinical Trial of an Automated mHealth Intervention for Physical Activity Promotion Martin, Seth S. Feldman, David I. Blumenthal, Roger S. Jones, Steven R. Post, Wendy S. McKibben, Rebeccah A. Michos, Erin D. Ndumele, Chiadi E. Ratchford, Elizabeth V. Coresh, Josef Blaha, Michael J. J Am Heart Assoc Original Research BACKGROUND: We hypothesized that a fully automated mobile health (mHealth) intervention with tracking and texting components would increase physical activity. METHODS AND RESULTS: mActive enrolled smartphone users aged 18 to 69 years at an ambulatory cardiology center in Baltimore, Maryland. We used sequential randomization to evaluate the intervention's 2 core components. After establishing baseline activity during a blinded run‐in (week 1), in phase I (weeks 2 to 3), we randomized 2:1 to unblinded versus blinded tracking. Unblinding allowed continuous access to activity data through a smartphone interface. In phase II (weeks 4 to 5), we randomized unblinded participants 1:1 to smart texts versus no texts. Smart texts provided smartphone‐delivered coaching 3 times/day aimed at individual encouragement and fostering feedback loops by a fully automated, physician‐written, theory‐based algorithm using real‐time activity data and 16 personal factors with a 10 000 steps/day goal. Forty‐eight outpatients (46% women, 21% nonwhite) enrolled with a mean±SD age of 58±8 years, body mass index of 31±6 kg/m(2), and baseline activity of 9670±4350 steps/day. Daily activity data capture was 97.4%. The phase I change in activity was nonsignificantly higher in unblinded participants versus blinded controls by 1024 daily steps (95% confidence interval [CI], −580 to 2628; P=0.21). In phase II, participants receiving texts increased their daily steps over those not receiving texts by 2534 (95% CI, 1318 to 3750; P<0.001) and over blinded controls by 3376 (95% CI, 1951 to 4801; P<0.001). CONCLUSIONS: An automated tracking‐texting intervention increased physical activity with, but not without, the texting component. These results support new mHealth tracking technologies as facilitators in need of behavior change drivers. CLINICAL TRIAL REGISTRATION: URL: http://ClinicalTrials.gov/. Unique identifier: NCT01917812. John Wiley and Sons Inc. 2015-11-09 /pmc/articles/PMC4845232/ /pubmed/26553211 http://dx.doi.org/10.1161/JAHA.115.002239 Text en © 2015 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley Blackwell. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial (http://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Original Research Martin, Seth S. Feldman, David I. Blumenthal, Roger S. Jones, Steven R. Post, Wendy S. McKibben, Rebeccah A. Michos, Erin D. Ndumele, Chiadi E. Ratchford, Elizabeth V. Coresh, Josef Blaha, Michael J. mActive: A Randomized Clinical Trial of an Automated mHealth Intervention for Physical Activity Promotion |
title | mActive: A Randomized Clinical Trial of an Automated mHealth Intervention for Physical Activity Promotion |
title_full | mActive: A Randomized Clinical Trial of an Automated mHealth Intervention for Physical Activity Promotion |
title_fullStr | mActive: A Randomized Clinical Trial of an Automated mHealth Intervention for Physical Activity Promotion |
title_full_unstemmed | mActive: A Randomized Clinical Trial of an Automated mHealth Intervention for Physical Activity Promotion |
title_short | mActive: A Randomized Clinical Trial of an Automated mHealth Intervention for Physical Activity Promotion |
title_sort | mactive: a randomized clinical trial of an automated mhealth intervention for physical activity promotion |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4845232/ https://www.ncbi.nlm.nih.gov/pubmed/26553211 http://dx.doi.org/10.1161/JAHA.115.002239 |
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