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My health smartphone intervention decreases daily fat sources among Latina breast cancer survivors.

  • Buscemi, Joanna1, 2
  • Oswald, Laura B3, 4
  • Baik, Sharon H3
  • Buitrago, Diana3
  • Iacobelli, Francisco5
  • Phillips, Siobhan M6
  • Perez-Tamayo, Alejandra7
  • Guitelman, Judy8
  • Penedo, Frank J9
  • Yanez, Betina3
  • 1 Department of Psychology, DePaul University, 2219 N Kenmore Ave, Chicago, IL, 60614, USA. [email protected]
  • 2 Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL, USA. [email protected]
  • 3 Department of Medical Social Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
  • 4 Health Outcomes and Behavior Program, Moffitt Cancer Center, Tampa, FL, USA.
  • 5 Department of Computer Science, Northeastern Illinois University, Chicago, IL, USA.
  • 6 Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
  • 7 Department of Surgery, University of Illinois at Chicago, Chicago, IL, USA.
  • 8 ALAS-WINGS, Latina Association for Breast Cancer, Chicago, IL, USA.
  • 9 Department of Psychology, University of Miami, Coral Gables, FL, USA.
Published Article
Journal of behavioral medicine
Publication Date
Oct 01, 2020
DOI: 10.1007/s10865-020-00136-3
PMID: 31970652


Breast cancer is the most common cancer among Latina women, and Latina women are at higher risk for breast cancer mortality than white women. Lifestyle factors, such as consuming a nutritious diet and engaging in regular physical activity, promote health and are protective against heart disease, type 2 diabetes, and breast cancer recurrence. Previous studies have developed and tested interventions for Latina breast cancer survivors to improve diet and increase physical activity, however, no studies to date have developed a smartphone delivered intervention. The purpose of the current study was to compare two Smartphone delivered interventions, My Health, which focused on diet and physical activity, and My Guide, which focused on psychosocial functioning, on dietary and physical activity outcomes, post-intervention, and at a 2-week follow-up assessment. Overall, participants receiving the My Health intervention reported a greater reduction in daily fat sources than the My Guide group over time. However, daily sources of fat did not differ between conditions. Walking, measured by estimated weekly metabolic equivalents, increased across time points in both groups. These preliminary findings suggest that eHealth interventions aimed at improving lifestyle factors may favorably impact nutritional intake and physical activity. Future research should utilize more comprehensive and objective measures of diet and physical activity, and incorporate more behavioral lifestyle components into the intervention in larger samples with a longer follow-up period.

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