Physical Activity and Related Psychosocial Outcomes From a Pilot Randomized Trial of an Interactive Voice Response System–Supported Intervention in the Deep South

Dori Pekmezi, Cole Ainsworth, Taylor Holly, Victoria Williams, Rodney Joseph, Kaiying Wang, Laura Q. Rogers, Bess Marcus, Renee Desmond, Wendy Demark-Wahnefried

Research output: Contribution to journalArticle

Abstract

Background. Physical activity exerts cancer-protective effects, yet most Americans are inactive, especially in the South, where cancer incidence rates are generally higher. Telephone-based approaches can help overcome physical activity intervention barriers in this region (literacy, costs, lack of transportation/technology, distance from facilities) and can be automated via interactive voice response (IVR) systems for improved reach and cost-effectiveness. Aims. To evaluate the Deep South IVR-supported Active Lifestyle (DIAL) intervention. Method. A pilot randomized controlled trial was conducted among 63 underactive adults in Birmingham, Alabama, from 2015 to 2017. Results. Retention was 88.9% at 12 weeks, and ≥75% adherence (IVR contact on at least 63 out of 84 days) was noted among 62.5% of intervention participants. Intervention participants reported larger increases in self-reported minutes of moderate-to-vigorous intensity physical activity from baseline to 12 weeks than the wait-list control arm (median change = 47.5 vs. 5.0 minutes, respectively, p =.09). Moreover, the intervention produced significantly greater increases in physical activity self-regulation (p <.001) and social support from family (p =.001) and friends (p =.009) from baseline to 12 weeks, compared with the wait-list control. Significant decreases in self-reported sleep disturbance also were found in the intervention arm but not among the controls, p <.05. Overall, intervention participants reported being satisfied with the DIAL program (71.4%) and would recommend it to friends (92.9%). Discussion. Findings support the feasibility, acceptability, and preliminary efficacy of the DIAL intervention. Conclusion. Next steps include intervention refinement in preparation for a fully powered efficacy trial and eventual dissemination to rural counties.

Original languageEnglish (US)
Pages (from-to)957-966
Number of pages10
JournalHealth Education and Behavior
Volume45
Issue number6
DOIs
StatePublished - Dec 1 2018

Keywords

  • cancer prevention
  • physical activity
  • telehealth

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Public Health, Environmental and Occupational Health

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