@Article{info:doi/10.2196/jmir.2844,
author="Steinberg, Dori M
and Levine, Erica L
and Askew, Sandy
and Foley, Perry
and Bennett, Gary G",
title="Daily Text Messaging for Weight Control Among Racial and Ethnic Minority Women: Randomized Controlled Pilot Study",
journal="J Med Internet Res",
year="2013",
month="Nov",
day="18",
volume="15",
number="11",
pages="e244",
keywords="self-monitoring; mHealth; text messaging; weight loss; black women",
abstract="Background: Daily self-monitoring of diet and physical activity behaviors is a strong predictor of weight loss success. Text messaging holds promise as a viable self-monitoring modality, particularly among racial/ethnic minority populations. Objective: This pilot study evaluated the feasibility of a text messaging intervention for weight loss among predominantly black women. Methods: Fifty obese women were randomized to either a 6-month intervention using a fully automated system that included daily text messages for self-monitoring tailored behavioral goals (eg, 10,000 steps per day, no sugary drinks) along with brief feedback and tips (n=26) or to an education control arm (n=24). Weight was objectively measured at baseline and at 6 months. Adherence was defined as the proportion of text messages received in response to self-monitoring prompts. Results: The average daily text messaging adherence rate was 49{\%} (SD 27.9) with 85{\%} (22/26) texting self-monitored behavioral goals 2 or more days per week. Approximately 70{\%} (16/23) strongly agreed that daily texting was easy and helpful and 76{\%} (16/21) felt the frequency of texting was appropriate. At 6 months, the intervention arm lost a mean of 1.27 kg (SD 6.51), and the control arm gained a mean of 1.14 kg (SD 2.53; mean difference --2.41 kg, 95{\%} CI --5.22 to 0.39; P=.09). There was a trend toward greater text messaging adherence being associated with greater percent weight loss (r=--.36; P=.08), but this did not reach statistical significance. There was no significant association between goal attainment and text messaging adherence and no significant predictors of adherence. Conclusions: Given the increasing penetration of mobile devices, text messaging may be a useful self-monitoring tool for weight control, particularly among populations most in need of intervention. Trial Registration: Clinicaltrials.gov: NCT00939081; http://clinicaltrials.gov/show/NCT00939081 (Archived by WebCite at http://www.webcitation.org/6KiIIcnk1). ",
issn="14388871",
doi="10.2196/jmir.2844",
url="http://www.jmir.org/2013/11/e244/",
url="https://doi.org/10.2196/jmir.2844",
url="http://www.ncbi.nlm.nih.gov/pubmed/24246427"
}