title: Impact of a Mobile Phone Intervention to Reduce Sedentary Behavior in a Community Sample of Adults: A Quasi-Experimental Evaluation.
abstract: BACKGROUND
  Greater time spent sedentary is linked with increased risk of breast, colorectal, ovarian, endometrial, and prostate cancers. Given steadily increasing rates of mobile phone ownership, mobile phone interventions may have the potential to broadly influence sedentary behavior across settings.
  
  
  OBJECTIVE
  The purpose of this study was to examine the short-term impact of a mobile phone intervention that targeted sedentary time in a diverse community sample.
  
  
  METHODS
  Adults participated in a quasi-experimental evaluation of a mobile phone intervention designed to reduce sedentary time through prompts to interrupt periods of sitting. Participants carried mobile phones and wore accelerometers for 7 consecutive days. Intervention participants additionally received mobile phone prompts during self-reported sitting and information about the negative health impact of prolonged sedentariness. The study was conducted from December 2012 to November 2013 in Dallas, Texas. Linear mixed model regression analyses were conducted to evaluate the influence of the intervention on daily accelerometer-determined estimates of sedentary and active time.
  
  
  RESULTS
  Participants (N=215) were predominantly female (67.9%, 146/215) and nonwhite (black: 50.7%, 109/215; Latino: 12.1%, 26/215; other: 5.6%, 12/215). Analyses revealed that participants who received the mobile phone intervention had significantly fewer daily minutes of sedentary time (B=-22.09, P=.045) and more daily active minutes (B=23.01, P=.04) than control participants.
  
  
  CONCLUSIONS
  A simple mobile phone intervention was associated with engaging in less sedentary time and more physical activity. Findings underscore the potential impact of mobile phone interventions to positively influence sedentary behavior and physical activity.
authors.affiliation: Department of Family and Preventive Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States. Darla-Kendzor@ouhsc.edu.
authors.forename: Darla E
authors.identifier: http://orcid.org/0000-0002-7273-1916
authors.initials: DE
authors.lastname: Kendzor
authors.forename: Kerem
authors.identifier: http://orcid.org/0000-0001-9542-0910
authors.initials: K
authors.lastname: Shuval
authors.forename: Kelley Pettee
authors.identifier: http://orcid.org/0000-0003-4986-7927
authors.initials: KP
authors.lastname: Gabriel
authors.forename: Michael S
authors.identifier: http://orcid.org/0000-0002-9038-2238
authors.initials: MS
authors.lastname: Businelle
authors.forename: Ping
authors.identifier: http://orcid.org/0000-0002-0585-7885
authors.initials: P
authors.lastname: Ma
authors.forename: Robin R
authors.identifier: http://orcid.org/0000-0002-9418-9195
authors.initials: RR
authors.lastname: High
authors.forename: Erica L
authors.identifier: http://orcid.org/0000-0001-9763-9799
authors.initials: EL
authors.lastname: Cuate
authors.forename: Insiya B
authors.identifier: http://orcid.org/0000-0003-2051-8803
authors.initials: IB
authors.lastname: Poonawalla
authors.forename: Debra M
authors.identifier: http://orcid.org/0000-0002-1608-7898
authors.initials: DM
authors.lastname: Rios
authors.forename: Wendy
authors.identifier: http://orcid.org/0000-0001-5241-932X
authors.initials: W
authors.lastname: Demark-Wahnefried
authors.forename: Michael D
authors.identifier: http://orcid.org/0000-0003-3953-8775
authors.initials: MD
authors.lastname: Swartz
authors.forename: David W
authors.identifier: http://orcid.org/0000-0002-4013-1932
authors.initials: DW
authors.lastname: Wetter
mesh_terms: D000328:Adult; D040421:Cell Phone; D015444:Exercise; D005260:Female; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D057185:Sedentary Behavior / Q000208:ethnology
keywords: African Americans; mobile phone; physical activity; sedentary lifestyle
references.citation: Am J Epidemiol. 2008 Apr 1;167(7):875-81
references.pmid: 18303006
references.citation: Nicotine Tob Res. 2002 May;4(2):149-59
references.pmid: 12028847
references.citation: Med Sci Sports Exerc. 2008 Jan;40(1):181-8
references.pmid: 18091006
references.citation: Obes Rev. 2014 Nov;15(11):905-19
references.pmid: 25112481
references.citation: BMJ Open. 2013 Oct 18;3(10):e003261
references.pmid: 24141969
references.citation: Am J Prev Med. 2011 Aug;41(2):207-15
references.pmid: 21767729
references.citation: Am J Clin Nutr. 2012 Feb;95(2):437-45
references.pmid: 22218159
references.citation: Int J Behav Nutr Phys Act. 2010 Jun 15;7:53
references.pmid: 20550691
references.citation: Nutr Metab Cardiovasc Dis. 2014 Sep;24(9):976-82
references.pmid: 24875670
references.citation: Br J Sports Med. 2014 Oct;48(19):1451-5
references.pmid: 22976910
references.citation: Int J Epidemiol. 2012 Oct;41(5):1338-53
references.pmid: 22634869
references.citation: BMJ Open. 2013 Jun 20;3(6):null
references.pmid: 23794543
references.citation: Med Sci Sports Exerc. 2005 Nov;37(11 Suppl):S512-22
references.pmid: 16294114
references.citation: Diabetes Care. 2012 May;35(5):976-83
references.pmid: 22374636
references.citation: Am J Clin Nutr. 2013 Mar;97(3):487-96
references.pmid: 23364014
references.citation: Cancer Epidemiol Biomarkers Prev. 2010 Nov;19(11):2691-709
references.pmid: 20833969
references.citation: Prev Med. 2013 Jul;57(1):43-8
references.pmid: 23597658
references.citation: J Natl Cancer Inst. 2014 Jul;106(7). pii: dju098. doi: 10.1093/jnci/dju098
references.pmid: 24935969
references.citation: Prev Chronic Dis. 2014;11:E203
references.pmid: 25412026
references.citation: Appl Physiol Nutr Metab. 2012 Jun;37(3):540-2
references.pmid: 22540258
references.citation: Mayo Clin Proc. 2014 Aug;89(8):1052-62
references.pmid: 25034308
references.citation: Am J Prev Med. 2014 Jan;46(1):30-40
references.pmid: 24355669
references.citation: PLoS One. 2014;9(8):e105620
references.pmid: 25144686
references.citation: Diabetes Care. 2008 Apr;31(4):661-6
references.pmid: 18252901
references.citation: Eur Heart J. 2011 Mar;32(5):590-7
references.pmid: 21224291
references.citation: Prev Chronic Dis. 2013;10:E177
references.pmid: 24176081
references.citation: Ann Intern Med. 2015 Jan 20;162(2):123-32
references.pmid: 25599350
references.citation: Fam Med. 1993 Jun;25(6):391-5
references.pmid: 8349060
references.citation: JAMA. 2011 Jun 15;305(23):2448-55
references.pmid: 21673296
references.citation: Am J Prev Med. 2011 Aug;41(2):189-96
references.pmid: 21767727
references.citation: Am J Prev Med. 2011 Feb;40(2):174-82
references.pmid: 21238866
references.citation: Prev Med. 2014 Sep;66:49-55
references.pmid: 24929196
references.citation: Prev Med. 2015 Apr;73:1-5
references.pmid: 25575798
references.citation: Arch Intern Med. 2009 Dec 14;169(22):2109-15
references.pmid: 20008695
references.citation: Med Sci Sports Exerc. 2003 Aug;35(8):1381-95
references.pmid: 12900694
references.citation: PLoS One. 2014;9(6):e100821
references.pmid: 24964010
references.citation: Curr Cardiovasc Risk Rep. 2008 Jul;2(4):292-298
references.pmid: 22905272
references.citation: Am J Prev Med. 2012 Sep;43(3):298-303
references.pmid: 22898123
references.citation: Diabetologia. 2012 Nov;55(11):2895-905
references.pmid: 22890825
references.citation: PLoS One. 2014;9(6):e94602
references.pmid: 24911017