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Related Concept Videos

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The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
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Study protocol for a sequential multiple assignment randomized trial (SMART) to improve physical activity in employed

Susan W Buchholz1, JoEllen Wilbur1, Shannon Halloway1

  • 1Rush University, College of Nursing, Chicago, IL, United States of America.

Contemporary Clinical Trials
|January 4, 2020
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Summary

This study uses adaptive interventions to find the best ways to increase physical activity and improve cardiovascular health in employed women. The sequential multiple assignment randomized trial (SMART) design personalizes treatment for individual needs.

Keywords:
Adaptive interventionsFitbitPhysical activitySMARTSequential multiple assignment randomized trialWomen

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Area of Science:

  • Health behavior interventions
  • Cardiovascular health promotion
  • Adaptive clinical trials

Background:

  • Individual responses to physical activity interventions vary significantly.
  • Employed women often face challenges in maintaining regular physical activity.
  • Existing interventions may not be optimally tailored to individual needs.

Purpose of the Study:

  • To determine the most effective adaptive intervention to increase physical activity and improve cardiovascular health in regularly inactive employed women.
  • To compare the efficacy of different combinations of physical activity monitors, text messages, personal calls, and group meetings.
  • To utilize a sequential multiple assignment randomized trial (SMART) design to personalize interventions.

Main Methods:

  • A SMART design involving 312 employed women aged 18-70.
  • Randomization to an initial intervention: enhanced physical activity monitor or monitor + text messaging.
  • Non-responders at 2 months are re-randomized to personal calls or group meetings for 6 months, followed by a return to the monitor.

Main Results:

  • This section is not applicable as the abstract does not contain results.

Conclusions:

  • The study will identify effective interventions for employed women, optimizing approaches for both those who respond to less intensive treatments and those requiring more intensive support.
  • Findings will contribute to the literature on tailored physical activity interventions for improving cardiovascular health in this population.