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. 2021 Feb:101:106238.
doi: 10.1016/j.cct.2020.106238. Epub 2020 Dec 5.

Community-based intervention effects on older adults' physical activity and falls: Protocol and rationale for a randomized optimization trial (Ready Steady3.0)

Siobhan K McMahon  1 , Beth A Lewis  2 , Weihua Guan  3 , Jean F Wyman  4 , Alexander J Rothman  5
Affiliations

Community-based intervention effects on older adults' physical activity and falls: Protocol and rationale for a randomized optimization trial (Ready Steady3.0)

Siobhan K McMahon et al. Contemp Clin Trials. 2021 Feb.

Abstract

The Ready Steady 3.0 trial is designed to test the main and interactive effects of two behavior change intervention components, within an 8-week physical activity intervention, on older adults' physical activity (PA). Each component is comprised of behavior change strategies that emphasize two different evidence-based ways to motivate older adults to be active: interpersonal and intrapersonal. 308 adults ≥70 years old will be randomized to 1 of 4 conditions in a 2 × 2 full factorial trial in which the two factors represent the receipt (No, Yes) of interpersonal or intrapersonal behavior change strategies. Participants will also receive two core intervention components: the Otago Exercise Program adapted for small groups and a PA monitor. Interventions across conditions will be delivered during 8 weekly, small group, meetings in community settings. The primary outcome of PA, measured objectively, and secondary outcomes of falls and the quality of life will be assessed at baseline and post-intervention: 1 week, 6 months, and 12 months. Findings will enable the identification of behavior change content that contributes to physical activity outcomes within a physical activity intervention for older adults. This study is one of the first to use the MOST framework to guide the development of a community-based physical activity intervention for older adults to reduce the public health problems of low PA and falls. The results will enable the optimization of behavior change content within a PA intervention for older adults and, in turn, other PA interventions for older adults.

Keywords: Behavior change; Fall prevention; Multi-phase optimization strategy; Older persons; Physical activity.

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Figures

Figure 1.
Figure 1.
Study Flow Diagram. Notes: OEP = Otago Exercise Program adapted for small groups; PAM = Physical Activity Monitor; BCS = Behavior Change Strategies
Figure 2.
Figure 2.
Intervention Conceptual Model
See this image and copyright information in PMC

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