Program for African American Cognition & Exercise (PAACE)
2020年6月23日 更新者：Robert L. Newton, Jr.、Pennington Biomedical Research Center
The study is designed to develop and evaluate a physical activity promotion program among elderly African Americans with a long-term goal of reducing risk of Alzheimer's disease.
The motivation for this study is that previous exercise interventions have improved cognitive function in older adults with and without cognitive impairments, but these studies were largely conducted without substantial African American representation.
Due to genetic and environmental differences between African American and other populations, it is unclear whether positive findings from previous interventions will translate to African American individuals.
Investigators hypothesize that a community-based physical activity intervention will a) be tailored to African American adults, b) increase daily amounts of physical activity, and c) improve cognitive function in sedentary older African American adults.
調査の概要
詳細な説明
Investigators will randomize 56 older African American adults into 1) a physical activity intervention specifically tailored to older African American or 2) a successful aging group. The 12-week physical activity intervention will consist of group based exercise sessions at a community facility and the successful aging groups will occur at Pennington Biomedical. Cognitive functioning and blood markers of circulating neurotrophic factors will be assessed to determine the brain effects of physical activity in this understudied population.
Specific Aim 1: To tailor a physical activity promotion intervention to community-dwelling African American elderly adults. Investigators will use focus groups to gather information needed to tailor a physical activity program to elderly African Americans.
Specific Aim 2: To determine if a physical activity promotion intervention in African American adults is effective in modifying physical activity and biological markers.
Specific Aim 3: To determine if a physical activity promotion intervention in African American adults benefits cognition and brain health. Change over the course of the intervention will be assessed in key AD related cognitive domains (memory, executive function, and processing speed).
Collecting this data sets the stage for the definitive study of exercise benefits on measures of amyloid, tau, inflammation, brain metabolism, and other AD-relevant pathways in elderly African Americans, which could in turn increase understanding of neurobiological mechanisms and optimal physical activity recommendations for elderly African Americans.
研究の種類
介入
入学 (実際)
56
段階
- 適用できない
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究場所
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Louisiana
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Baton Rouge、Louisiana、アメリカ、70808
- Pennington Biomedical Research Center
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参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
適格基準
就学可能な年齢
65年～85年 (高齢者)
健康ボランティアの受け入れ
はい
受講資格のある性別
全て
説明
Inclusion Criteria:
- 65 - 85 years of age
- African American
- sedentary or insufficiently active
- not cognitively impaired
- physically capable of exercise
- willing to accept randomization
- willing to attend group sessions
- willing to live in the study area for the next 6 months
- willing to allow researchers to use data for research purposes after study participation is completed
- free of conditions that would make regular exercise unsafe as deemed by the medical investigator
Exclusion Criteria:
- unable or unwilling to give informed consent or accept randomization in either study group
- are cognitively impaired (MMSE score of ≤ 26)
- are unable to complete physical activity requirements (SPPB ≤ 3, complete 2 minute walk without sitting or resting against a surface)
- are too active (steps per day > 50th percentile for age and gender)
- have uncontrolled hypertension (systolic blood pressure > 200 mmHg and/or diastolic blood pressure > 110 mmHg).
- gave had a hip fracture, hip or knee replacement, or spinal surgery in the past 6 months
- have had a myocardial infarction, major heart surgery (i.e., valve replacement or bypass surgery), stroke, deep vein thrombosis or pulmonary embolus in the past 6 months
- are undergoing physical therapy or cardiopulmonary rehabilitation
- are currently enrolled in another randomized trial involving lifestyle or pharmaceutical interventions
- have another member of the household that is a participant in PAACE
- have plans to relocate out of the study area within the next 6 months
- have uncontrolled diabetes that in the judgment of the MI may interfere with study participation
- have other medical, psychiatric, or behavioral factors that in the judgment of the Principal or Medical Investigator may interfere with study participation or the ability to follow the intervention protocol
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：防止
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的：Physical Activity
The intervention will be a 12-week community-based physical activity promotion program
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Aerobic, strength training, balance, flexibility
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アクティブコンパレータ：Successful Aging
Those randomized to the successful aging group will receive health information pertinent to African Americans over the 12 weeks
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Healthy aging education
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change in steps.
時間枠：7-day period
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Steps will be measured by the abtigraph WGT3X+ accelerometer.
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7-day period
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change in dementia screening.
時間枠：Week 0 and Week 12
|
The Mini-Mental State Examination (MMSE) is a 30-item measure of cognitive function.
Scores range from 0-30, higher scores represent better global cognitive functioning.
|
Week 0 and Week 12
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Change in cognition.
時間枠：Week 0 and Week 12
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The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) is a brief, individually administered battery to measure cognitive decline or improvement.
Four subtests of the full battery of 12 subtests used to assess immediate memory (List Learning and Story Memory), as well as language capacities (i.e., Picture Naming and Semantic Fluency).
T-scores are derived, higher scores represent better functioning.
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Week 0 and Week 12
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Change in quality of life.
時間枠：Week 0 and Week 12
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The Health Related Quality of Life questionnaire consists of 27 questions.
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Week 0 and Week 12
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Change in health care utilization.
時間枠：Week 0 and Week 12
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The Health Care Utilization questionnaire consists of 12 questions.
Participants report utilization of various health care avenues.
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Week 0 and Week 12
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Change in depressive symptoms.
時間枠：Week 0 and Week 12
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The Geriatric Depression Scale (GDS) measures depressive symptoms specifically in an elderly population.
Total scores range from 0 (no depressive symptoms) to 15 (indicative of depression).
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Week 0 and Week 12
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Change in resilience.
時間枠：Week 0 and Week 12
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The 25-item Connor-Davidson Resilience Scale (CD-RISC 25) collects information on resilience, which is the ability to thrive despite adversity.
The total score ranges from 0 (low resilience) to 100 (higher resilience)
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Week 0 and Week 12
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その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Tailored physical activity program for elderly African American adults
時間枠：1.5 hour focus groups prior to RCT. Recruitment, retention and protocol compliance throughout the intervention
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Use focus groups to gather information needed to tailor a physical activity program
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1.5 hour focus groups prior to RCT. Recruitment, retention and protocol compliance throughout the intervention
|
協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
出版物と役立つリンク
研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。
一般刊行物
- Gwizdala KL, Brouillete R, Beyl R, Johnson W, Hebert C, Carter L, Harris M, Newton RL Jr, Carmichael OT. Exercise Effects on Cognition in Older African Americans: A Pilot Randomized Trial. Front Aging Neurosci. 2022 Jul 22;14:921978. doi: 10.3389/fnagi.2022.921978. eCollection 2022.
- Newton RL Jr, Beyl R, Hebert C, Harris M, Carter L, Gahan W, Carmichael O. A Physical Activity Intervention in Older African Americans: The PAACE Pilot Randomized Controlled Trial. Med Sci Sports Exerc. 2022 Oct 1;54(10):1625-1634. doi: 10.1249/MSS.0000000000002956. Epub 2022 May 7.
研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始 (実際)
2018年2月19日
一次修了 (実際)
2019年6月30日
研究の完了 (実際)
2019年6月30日
試験登録日
最初に提出
2018年3月15日
QC基準を満たした最初の提出物
2018年3月15日
最初の投稿 (実際)
2018年3月22日
学習記録の更新
投稿された最後の更新 (実際)
2020年6月25日
QC基準を満たした最後の更新が送信されました
2020年6月23日
最終確認日
2020年6月1日
詳しくは
本研究に関する用語
キーワード
その他の研究ID番号
- 2017-022
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
いいえ
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
いいえ
米国FDA規制機器製品の研究
いいえ
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
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