- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT04137068
Sedentary Behavior, Cardiovascular Function, and Sleep (PACE)
연구 개요
상세 설명
PRIMARY OBJECTIVES:
1. To test the hypothesis that two weeks of sedentary behavior will progressively impair vascular endothelial function.
2: To test the hypothesis that increasing sedentary behavior will decrease total sleep duration and sleep efficiency.
3: To test the hypothesis that two-weeks of sedentary behavior will progressively increase 24-h blood pressure and reduce nocturnal blood pressure dipping.
OUTLINE:
After a baseline period, participants will become more inactive and also come in for 4-h uninterrupted sitting visits. Cardiovascular, activity, and sleep measures will be taken throughout.
연구 유형
등록 (예상)
단계
- 해당 없음
연락처 및 위치
연구 장소
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Oregon
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Portland, Oregon, 미국, 97239
- 모병
- Oregon Institute of Occupational Health Sciences
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연락하다:
- Saurabh Thosar, Dr.
- 전화번호: 503-494-2064
- 이메일: thosar@ohsu.edu
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수석 연구원:
- Saurabh Thosar, Dr.
-
-
참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Ages 20-80y
- Lean and overweight (BMI 18.5-40 kg/m2)
- No acute, chronic, or debilitating medical conditions
- No prescription/non-prescription medications or drugs of abuse
- Limited weight training or intense exercise (swimming, CrossFit)
- Non-smoker
- Average level of daily physical activity (8,000-12,499 steps/day)
- Persons who fit all the above criteria and are suitable based on a medical history and health habits questionnaire, sleep profiling questionnaire, and electrocardiogram and clinical biochemical screening tests of blood and urine may be eligible to participate.
Exclusion Criteria:
- Persons with any acute, chronic, or debilitating medical condition except pre-hypertension and/or mild to moderate sleep apnea will be excluded.
- Persons with any symptoms of acute or active illness (e.g. fever, leukocytosis) will be excluded.
- Persons with a history of severe psychiatric illness or psychiatric disorders will be excluded.
- Persons with a history of regular night/or rotating shift work, or who have traveled more than three time zones during the one month prior to the study will be excluded.
- Pregnant persons, decisionally impaired adults, and prisoners will be excluded.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 다른
- 할당: 해당 없음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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다른: Sedentary to Active
Participants will visit the research laboratory for baseline measurements at visit 1 after wearing a pedometer for one week and maintaining their typical level of physical activity.
After the baseline visit, participants will reduce their step count by more than half for two weeks.
Participants will visit the laboratory once every week during the 2 week interventional period for a total of 3 visits.
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Participants reduce their activity level to <5,000 steps/day and <50 % of baseline steps.
다른 이름들:
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Endothelial Function
기간: 3 weeks
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Investigators will measure endothelial function as flow-mediated dilation at baseline, and each hour of the 3-hour sitting trials.
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3 weeks
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Oxidative stress
기간: 3 weeks
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Oxidative stress will be measured using malondialdehyde adducts (MDA) from Ethylenediaminetetraacetic acid (EDTA) plasma.
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3 weeks
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Endothelin-1
기간: 3 weeks
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Endothelin 1 (ET-1) will be measured from Ethylenediaminetetraacetic acid (EDTA) plasma.
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3 weeks
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Heart rate
기간: 3 weeks
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During the weekly trials, heart rate will be measured as beats per minute while participants are in a seated position during the prolonged sitting period.
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3 weeks
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Blood pressure
기간: 3 weeks
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During the weekly trials, blood pressure will be measured as systolic over diastolic in a seated position in the dominant arm
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3 weeks
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24-hour BP measurement
기간: 3 weeks
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Investigators will measure 24-hour ambulatory blood pressure monitoring (AMBP, Spacelabs, Inc) at baseline and for 24-h before each in-lab visit.
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3 weeks
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Sleep duration
기간: 3 weeks
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Sleep duration will be scored from the ActiGraph and correlated with the sleep and activity diary.
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3 weeks
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Sleep efficiency
기간: 3 weeks
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Sleep efficiency will be scored from the ActiGraph and correlated with the sleep and activity diary.
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3 weeks
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Activity
기간: 3 weeks
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Activity will be scored from the ActiGraph and correlated with the sleep and activity diary.
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3 weeks
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Activity Perception
기간: 3 weeks
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Activity perception will be measured before each prolonged sitting trial using an Activity Perception questionnaire (Perception of Current Activity Questionnaire).
The questionnaire has 7 questions with answers ranging from 1 to 5. The range of scores is from 7 to 35, with 7 suggesting a strong negative perception of current activity, and 35 suggesting a strong positive perception of current activity.
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3 weeks
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공동 작업자 및 조사자
수사관
- 수석 연구원: Saurabh Thosar, Dr., Oregon Institute of Occupational Health Sciences
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (예상)
연구 완료 (예상)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .