title: Twelve-month physical activity outcomes in Latinas in the Seamos Saludables trial.
abstract: BACKGROUND
  Physical activity interventions designed for Latinas have shown short-term behavior change, but longer-term change and maintenance is rarely measured.
  
  
  OBJECTIVE
  To assess physical activity change at 12 months, following 6-month tapered completion of an RCT of a physical activity intervention for Latinas.
  
  
  METHODS
  Two hundred sixty-six underactive (<60 minutes/week physical activity) Latinas were randomized to an individually tailored, culturally and linguistically adapted physical activity intervention, or a wellness contact control. Participants received the materials through the mail for 6 months, then received booster doses at 8, 10, and 12 months. Minutes per week of moderate to vigorous physical activity were measured by the 7-Day Physical Activity Recall interview at baseline and 6 and 12 months. Data were collected at Brown University between 2009 and 2013, and analyses were conducted in 2013.
  
  
  RESULTS
  At 12 months, increases in moderate to vigorous physical activity were significantly greater in the intervention than in the wellness group (mean difference=52 minutes/week, SE=9.38, p<0.01), with both groups showing slight increases in moderate to vigorous physical activity from 6 to 12 months. Intervention participants were also more likely to meet national moderate to vigorous physical activity guidelines (OR=3.14, p=0.01).
  
  
  CONCLUSIONS
  The intervention was more effective than the wellness control at 12 months, and physical activity increases from baseline to 6 months were maintained, suggesting the intervention may lead to sustainable behavior change.
  
  
  BACKGROUND
  This study is registered at Clinicaltrials.gov NCT01583140.
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.affiliation: Centers for Behavioral and Preventive Medicine, Department of Psychiatry and Human Behavior, Miriam Hospital; Warren Alpert Medical School, Brown University, Providence, Rhode Island.
authors.forename: Shira I
authors.initials: SI
authors.lastname: Dunsiger
authors.affiliation: Department of Health Behavior, School of Public Health, University of Alabama, Birmingham, Alabama.
authors.forename: Dori
authors.initials: D
authors.lastname: Pekmezi
authors.affiliation: Department of Family and Preventive Medicine, University of California, San Diego, California.
authors.forename: Britta A
authors.initials: BA
authors.lastname: Larsen
authors.affiliation: Department of Family and Preventive Medicine, University of California, San Diego, California.
authors.forename: Becky
authors.initials: B
authors.lastname: Marquez
authors.affiliation: Centers for Behavioral and Preventive Medicine, Department of Psychiatry and Human Behavior, Miriam Hospital; Warren Alpert Medical School, Brown University, Providence, Rhode Island.
authors.forename: Beth C
authors.initials: BC
authors.lastname: Bock
authors.affiliation: Centers for Behavioral and Preventive Medicine, Department of Psychiatry and Human Behavior, Miriam Hospital; Warren Alpert Medical School, Brown University, Providence, Rhode Island.
authors.forename: Kim M
authors.initials: KM
authors.lastname: Gans
authors.affiliation: Centers for Behavioral and Preventive Medicine, Department of Psychiatry and Human Behavior, Miriam Hospital; Warren Alpert Medical School, Brown University, Providence, Rhode Island.
authors.forename: Kathleen M
authors.initials: KM
authors.lastname: Morrow
authors.affiliation: Centers for Behavioral and Preventive Medicine, Department of Psychiatry and Human Behavior, Miriam Hospital; Warren Alpert Medical School, Brown University, Providence, Rhode Island.
authors.forename: Peter
authors.initials: P
authors.lastname: Tilkemeier
mesh_terms: D005500:Follow-Up Studies; D015438:Health Behavior; D006293:Health Promotion / Q000379:methods; D006630:Hispanic or Latino; D006801:Humans; D009043:Motor Activity; D009511:New England