Physical Activity to Improve CV Health in Older Women: A Pragmatic Trial -- DCC

体力活动可改善老年女性的心血管健康:一项务实的试验——DCC

基本信息

项目摘要

 DESCRIPTION (provided by applicant): The number of Americans aged 65 and older is projected to double to 88.5 million by 2050 (55% women). The significant aging of the U.S. population creates a public health mandate to identify effective interventions for preserving the health and independence of older people, especially women. Compelling evidence over the past several decades supports the importance of physical activity (PA) for preventing cardiovascular (CV) and other chronic diseases, and preserving physical and cognitive health, in older adults. Yet, despite the steady emergence of evidence-based interventions for increasing PA in older adults, which could potentially be delivered at a population level, we lack large-scale randomized trial data showing that these interventions can prevent clinical CV events or impact the public's health. To address this critical gap, we propose to conduct a large-scale, randomized controlled pragmatic trial, the Women's Health Initiative Strong & Healthy (WHISH) trial. This pragmatic trial will be embedded in the large, race/ethnicity diverse, WHI Extension cohort, now aged 63-99 years, which is both novel and resource-efficient. The trial will test the hypothesis that a centralized public health intervention designed to increase and/or maintain PA to levels recommended for older U.S. adults will reduce major CV events (e.g., myocardial infarction (MI), stroke, and CVD death) in older women over ~4 years of follow-up. The study will also evaluate the safety of the intervention by examining risks of total clinical fracture, hi fracture, falls, and non-CVD mortality. Preliminary screening indicates that 50,500 WHI women will meet eligibility criteria; the PA intervention and "usual activity" comparison groups will eac contain ~25,250 participants (mean age ~80 years). We will use a randomized consent design, with the observational comparison group and non-consenters followed as usual within the WHI Extension study. The WHISH intervention builds upon evidence-based, state-of-the-science behavioral approaches and intervention components that have proven to be effective in increasing PA in older women, with innovative adaptive strategies to tailor the intervention. We will use an algorithm-driven interactive voice response (IVR) system, a technology of increasing familiarity to older adults, built to complement National Institute on Aging (NIA) Go4Life(R) Exercise & Physical Activity materials. The evidence-based IVR system provides tailored advice, with personalized feedback and a means for self-monitoring (logging activity) and personal goal setting. PA behavior will be monitored by self-reported questionnaire and an accelerometry substudy in both study groups. Based on observed rates in the WHI cohort, we project 80% power to detect a 12.5% effect size for major CV events over the follow-up period. The WHI infrastructure, combined with innovative, evidence-based methods to deliver the PA intervention at a population level, provides a unique opportunity to address the critical question, "Can a public health PA intervention reduce CVD events in older women?" Determining the answer to this question, using a resource-efficient, scalable intervention, has major public health significance.


项目成果

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Charles L Kooperberg其他文献

Charles L Kooperberg的其他文献

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{{ truncateString('Charles L Kooperberg', 18)}}的其他基金

Physical Activity to Improve CV Health in Older Women: A Pragmatic Trial
体力活动可改善老年女性的心血管健康:一项务实的试验
  • 批准号:
    10688242
  • 财政年份:
    2020
  • 资助金额:
    $ 66.78万
  • 项目类别:
Physical Activity to Improve CV Health in Older Women: A Pragmatic Trial
体力活动可改善老年女性的心血管健康:一项务实的试验
  • 批准号:
    10652593
  • 财政年份:
    2020
  • 资助金额:
    $ 66.78万
  • 项目类别:
Physical Activity to Improve CV Health in Older Women: A Pragmatic Trial
体力活动可改善老年女性的心血管健康:一项务实的试验
  • 批准号:
    10274794
  • 财政年份:
    2020
  • 资助金额:
    $ 66.78万
  • 项目类别:
Trans-omics elucidation of genetic architecture underlying cardiovascular and HLBS diseases
跨组学阐明心血管和 HLBS 疾病的遗传结构
  • 批准号:
    9895848
  • 财政年份:
    2019
  • 资助金额:
    $ 66.78万
  • 项目类别:
Whole Genome Sequence Analysis of Ischemic Stroke in the Women's Health Initiative
妇女健康倡议中缺血性中风的全基因组序列分析
  • 批准号:
    9290440
  • 财政年份:
    2017
  • 资助金额:
    $ 66.78万
  • 项目类别:
Research Program: Biostatistics and Computational Biology
研究项目:生物统计学和计算生物学
  • 批准号:
    8804802
  • 财政年份:
    2015
  • 资助金额:
    $ 66.78万
  • 项目类别:
Physical Activity to Improve CV Health in Older Women: A Pragmatic Trial -- DCC
体力活动可改善老年女性的心血管健康:一项务实的试验——DCC
  • 批准号:
    9010974
  • 财政年份:
    2015
  • 资助金额:
    $ 66.78万
  • 项目类别:
Exonic variants and their relation to complex traits in minorities of the WHI
外显子变异及其与 WHI 少数群体复杂性状的关系
  • 批准号:
    9527426
  • 财政年份:
    2013
  • 资助金额:
    $ 66.78万
  • 项目类别:
Exonic variants and their relation to complex traits in minorities of the WHI
外显子变异及其与 WHI 少数群体复杂性状的关系
  • 批准号:
    8571986
  • 财政年份:
    2013
  • 资助金额:
    $ 66.78万
  • 项目类别:
Adaptive Statistical Methods for Genetic Association Studies
遗传关联研究的自适应统计方法
  • 批准号:
    8082575
  • 财政年份:
    2011
  • 资助金额:
    $ 66.78万
  • 项目类别:

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