Cognitive Effects of Aerobic Exercise for MCI Adults
2008年7月29日 更新者:Seattle Institute for Biomedical and Clinical Research
Cognitive Effects of Aerobic Exercise for Adults With Mild Cognitive Impairment: A Controlled Trial
The specific aims for the study will be to determine if aerobic exercise enhances cognition for older adults who are at greater risk for developing Alzheimer's disease, and to evaluate whether change in insulin sensitivity predicts cognitive performance for subjects randomized to the aerobic exercise group.
Sedentary older adults diagnosed with mild cognitive impairment will participate in a 6-month supervised protocol of either aerobic exercise or stretching.
Cognitive testing and blood collection will occur at baseline, and months 3 and 6.
Before and after the 6-month intervention, insulin sensitivity, maximum aerobic capacity, and body fat composition and distribution (via CT scan) will be assessed for all subjects.
The results of this study may provide support for a relatively simple and inexpensive treatment strategy that specifically targets many of the health factors that directly influence risk of cognitive decline for older adults.
研究概览
详细说明
The specific aims for the study are 1) to determine if aerobic exercise enhances cognition for older adults with mild cognitive impairment, 2) to evaluate whether change in insulin sensitivity predicts cognitive performance for subjects in the aerobic exercise group, and 3) to relate exercise effects on insulin sensitivity and cognition to growth factor expression, inflammatory markers, catecholamines, beta-amyloid, and body-fat composition.
Using a randomized controlled parallel group design, 40 sedentary older adults diagnosed with mild cognitive impairment will participate in a 6-month supervised protocol of either aerobic exercise or stretching.
Cognitive testing and blood collection will occur at baseline, and months 3 and 6.
Before and after the 6-month intervention, insulin sensitivity (via hyperinsulinemic-euglycemic clamp), maximum aerobic capacity (via respiratory gas exchange and cardiopulmonary fitness measures), and body fat composition (via DEXA scan) and distribution (via CT scan) will be assessed for all subjects.
The results of this study may provide support for a relatively simple and inexpensive treatment strategy that specifically targets many of the health factors that directly influence risk of cognitive decline for older adults.
研究类型
介入性
注册 (预期的)
40
阶段
- 阶段2
联系人和位置
本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。
学习地点
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Washington
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Seattle、Washington、美国、98108
- Veterans Affairs Puget Sound Health Care System
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Tacoma、Washington、美国、98493
- Veterans Affairs Puget Sound Health Care System
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参与标准
研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
55年 至 90年 (成人、年长者)
接受健康志愿者
是的
有资格学习的性别
全部
描述
Inclusion Criteria:
- diagnosed with mild cognitive impairment, at least 55 years of age, sedentary (elevated HR & SOB <3x/wk and <30min on each occasion), overall good general health, willing to exercise at least 4 times/wk for 6 months
Exclusion Criteria:
- Significant neurologic disease that might affect cognition, such as a diagnosis of Alzheimer's disease, stroke, Parkinson's disease, multiple sclerosis, or severe head injury with loss of consciousness; significant medical illness or organ failure such as liver disease, significant elevations in liver function tests, kidney disease, uncontrolled hypertension (BP>140/90 on medication); cardiovascular disease defined as any acute cardiovascular abnormality, such as new or unstable angina, uncontrolled irregular heart beat (treated a-fib and occasional PVC's are OK) or symptomatic heart failure, acute shortness of breath for any reason, or clinically significant edema; chronic lung disease, or musculoskeletal impairment (impaired walking); current use of anti-psychotic, anti-convulsant, anti-coagulant, sedative, or any cognition-enhancing medications; current or previous use of hypoglycemic agents or insulin.
学习计划
本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:单身的
研究衡量的是什么?
主要结果指标
结果测量 |
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认知分数的变化
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胰岛素敏感性的变化
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次要结果测量
结果测量 |
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Change in biomarkers associated with Alzheimer's disease progression
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Correlation between cognitive scores, insulin sensitivity, & biomarkers
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员:Laura D Baker, PhD、VA Puget Sound Health Care System; University of Washington
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2005年1月1日
初级完成 (实际的)
2008年4月1日
研究完成 (实际的)
2008年5月1日
研究注册日期
首次提交
2005年9月21日
首先提交符合 QC 标准的
2005年9月21日
首次发布 (估计)
2005年9月22日
研究记录更新
最后更新发布 (估计)
2008年7月30日
上次提交的符合 QC 标准的更新
2008年7月29日
最后验证
2008年7月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.
有氧运动的临床试验
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University of Maryland, BaltimoreNational Institute on Aging (NIA)完全的