Text4Diet: A randomized controlled study using text messaging for weight loss behaviors
2012
Abstract Objective Text-messaging shows promise as a health intervention. This randomized controlled trial evaluated a daily text-messaging weight loss intervention. Methods Overweight and obese adults (n = 170) in California were randomized to receive daily interactive and personally weight-relevant text-messages or monthly e-newsletters. Participants were measured at baseline, 6 and 12 months. Group differences were assessed in weight loss. Relation of text-messaging adherence to weight loss and change in pedometer steps was examined. Results There were no group differences in weight loss over 6 (1.53 lb vs 3.72 lb) or 12 months (2.27 lb vs 3.64 lb; control vs intervention). Text-messaging adherence was moderately strong (60–69%). Participants with greater adherence lost more weight at 6 ( p = .039) and 12 months ( p = .023) than those who were less adherent. Intervention participants' steps increased almost 3000 steps/day over time ( p p p Conclusions Although text-messaging had no effect on weight, adherence was associated with improvement in weight-related behaviors and weight outcomes. Text-messages could be a useful adjunct to weight loss treatments.
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