title: The Seamos Saludables study: A randomized controlled physical activity trial of Latinas.
abstract: BACKGROUND
  Latinas in the U.S. are less physically active than non-Latino white women and also report higher levels of diabetes, obesity, and other conditions related to inactivity. Interventions are needed to address disparities in this high-risk group.
  
  
  OBJECTIVE
  To evaluate the efficacy of a culturally adapted, Spanish-language, individually tailored, computer expert system-driven physical activity print-based intervention for adult Latinas.
  
  
  METHODS
  RCT.
  
  
  METHODS
  Participants were 266 inactive adult Latinas who participated between 2009 and 2012.
  
  
  METHODS
  Participants were randomized to one of two treatment arms: a 6-month tailored physical activity intervention condition or wellness contact control. For both conditions, print materials were delivered by mail.
  
  
  METHODS
  The main outcome measure was change in weekly moderate-to-vigorous physical activity (MVPA) measured by the 7-Day Physical Activity Recall interview, which was administered at baseline and post-intervention (6 months). Participants also wore accelerometers for a week at baseline and follow-up. Analyses were conducted in 2013.
  
  
  RESULTS
  Increases in minutes/week of MVPA measured by the 7-Day PAR were significantly greater in the intervention group compared to the control group (mean difference=41.36, SE=7.93, p<0.01). This difference was corroborated by accelerometer readings (rho=0.44, p<0.01). Further, results indicate that intervention participants had greater increases in self-efficacy, cognitive processes, and behavioral processes at 3 months compared to control paricipants (p's<0.05).
  
  
  CONCLUSIONS
  The tailored Spanish-language intervention was effective in increasing MVPA among predominantly low-income, less-acculturated Latinas. Such print-based interventions are poised for widespread dissemination, and thus may help address health disparities.
authors.affiliation: Department of Family and Preventive Medicine, University of California, San Diego, California. Electronic address: bmarcus@ucsd.edu.
authors.forename: Bess H
authors.initials: BH
authors.lastname: Marcus
authors.forename: Shira I
authors.initials: SI
authors.lastname: Dunsiger
authors.forename: Dorothy W
authors.initials: DW
authors.lastname: Pekmezi
authors.forename: Britta A
authors.initials: BA
authors.lastname: Larsen
authors.forename: Beth C
authors.initials: BC
authors.lastname: Bock
authors.forename: Kim M
authors.initials: KM
authors.lastname: Gans
authors.forename: Becky
authors.initials: B
authors.lastname: Marquez
authors.forename: Kathleen M
authors.initials: KM
authors.lastname: Morrow
authors.forename: Peter
authors.initials: P
authors.lastname: Tilkemeier
mesh_terms: D000328:Adult; D003071:Cognition; D015444:Exercise; D005260:Female; D005500:Follow-Up Studies; D015438:Health Behavior; D006293:Health Promotion / Q000379:methods*; D054624:Health Status Disparities; D006630:Hispanic or Latino; D006801:Humans; D007802:Language; D009043:Motor Activity; D017063:Outcome Assessment, Health Care; D011203:Poverty; D020377:Self Efficacy; D013997:Time Factors