Exercise Program in Women With Metabolic Syndrome
2017년 11월 2일 업데이트: Vera Novak, Beth Israel Deaconess Medical Center
The Effect of Mixed Aerobic and Strength Training Program on Physical Fitness and Cerebrovascular Function in Older Women With Metabolic Syndrome: A Pilot Study With Randomized Control Trial (RCT) Design
The purpose of this study is to test whether a supervised mixed aerobic and strength training (MAST) program is effective in improving overall physical fitness and blood flow in the brain and lowering risk factors of coronary artery disease (CAD) in women with metabolic syndrome.
연구 개요
상세 설명
Metabolic syndrome is a cluster of conditions and disorders that increase the risk for coronary artery disease (CAD) and strokes.
Sedentary lifestyle is one of the risk factors, which decrease overall physical fitness and together with aging may lead to decrease in physical functioning in everyday life as well as changes in blood flow in the brain and cognitive functions.
Regular physical activity is associated with a reduced risk of cardiovascular disease.
It may also improve blood flow velocity and cognitive functions.
Physical activity should be as effective as possible, but also as safe as possible.
Supervised mixed aerobic and strength training (MAST) program for 4 months enables to individualize the intensity of aerobic exercise based on measured maximal exercise capacity.
Throughout each training session heart rate will be monitored with a new real time wireless ECG system.
연구 유형
중재적
등록 (실제)
28
단계
- 해당 없음
연락처 및 위치
이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.
연구 장소
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Massachusetts
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Boston, Massachusetts, 미국, 02215
- Beth Israel Deaconess Medical Center, Harvard University
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참여기준
연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.
자격 기준
공부할 수 있는 나이
50년 이상 (성인, 고령자)
건강한 자원 봉사자를 받아들입니다
아니
연구 대상 성별
여성
설명
Inclusion Criteria:
- Post-menopausal women
- Age 50 or over
- Diagnosed metabolic syndrome
Exclusion Criteria:
- Any unstable or acute medical condition that the study physician deem unsafe for participation
- Positive stress test for CAD or other ischemic conditions
- Myocardial infarction or major surgery within 6 months
- History of a clinically documented stroke
- Clinical dementia (by history) or inability to follow details of the protocol
- Carotid stenosis > 50% by medical history
- Insulin dependent diabetes mellitus (also type II, if using insulin) or history of severe hypoglycemic episodes within 6 months requiring hospitalization
- Liver or renal failure or transplant
- Severe blood pressure elevation (systolic BP > 180 and/or diastolic BP > 110 mm Hg)
- Anemia (Hb < 10)
- Seizure disorders
- Current recreational drug or alcohol abuse
- BMI > 45, but body weight under 280 lbs
- Inability to obtain permission for participation from the primary care physician
- Clinically significant and movement limiting hip, knee and/or back disorders or injury, and rheumatoid arthritis
- Transcranial Doppler (TCD) exclusion criteria - poor insonation window and TCD signal
공부 계획
이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 다른
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 하나의
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: MAST program
Mixed Aerobic and Strength Training program (MAST): Each exercise session consisted of 10 minutes of warm-up, 15-30 minutes of interval aerobic training by cycle ergometer according to the program, 20 minutes of strength training exercises, and 10 minutes of cool-down by stretching.
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MAST program: twice a week for 4 months
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간섭 없음: UC
Usual Care (UC) with Educational Lectures: No exercise sessions.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Maximal Oxygen Uptake
기간: At baseline and after 4 months of intervention
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To obtain peak oxygen uptake (VO2max; ml-1/min-1/kg), a symptom-limited exercise stress test was performed on a cycle ergometer.
The test was preceded by a 2-minute warm-up at the intensity of 20 W. The first test load was 20 W, and was increased by 20 W at each 2-minute stage until the participants could no longer continue, i.e., they were unable to maintain pedaling frequency > 40 rpm, they achieved a respiratory exchange ratio of more than 1.0, or clinical criteria for test termination was observed.
VO2max was measured and monitored with a breath-by-breath gas exchange system.
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At baseline and after 4 months of intervention
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Cerebral Blood Flow Velocity (BFV)
기간: At baseline and after 4 months of intervention
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Cerebral BFV was monitored using Transcranial Doppler Ultrasound.11
The middle cerebral artery was insonated from the temporal window by placing the 2-MegaHertZ (MHz) probe against the skin of the temporal region above the zygomatic arch.
The probe was positioned to obtain maximal BFV and was fixed at the desired angle using a 3-dimensional positioning system.
Once instrumented, BFV was continuously recorded throughout ten minutes of supine rest and 10-minutes on a table tilted to 80° from the horizontal position (head-up with foot plate support).
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At baseline and after 4 months of intervention
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Trail Making Test
기간: At baseline and after 4 months of intervention
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The Trail Making (TM) test is a measure of shifting attention.
Participants are required to sequentially connect a series of numbered circles (Part A), and then to alternate between numbers and letters sequentially (Part B) (e.g., A-1-B-2-C-3..).
Any participant who has not completed Part B within the standard 5 minutes (300 seconds) allotted for the task will be considered unable to complete the task.
The scores in Part A (TM-A), Part B (TM-B) T scores ( age, education adjusted), and their difference (TM-B -TM-A) were calculated and used to measure executive function, i.e., lower scores indicates better performance.
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At baseline and after 4 months of intervention
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Muscle Strength
기간: At baseline and after 4 months of intervention
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MAST sessions were held twice a week for 16 weeks.
Each exercise session consisted of 10 min of warm-up, 15-30 min of interval aerobic training by cycle ergometer according to the program, 20 min of strength training exercises, and 10 min of cool-down by stretching.
The target heart rate (HR) increased progressively from 50% up to 80% of HR reserve by the end of the intervention period.The Karvonen formula ([(HRmax - HRrest)×(0.50 to 0.80)] + HRrest) was used to calculate the target HR.
During every training session a new wireless computerized ECG monitoring system was used.
After aerobic training, the strength training program was performed.
Exercises used body mass as resistance and included squat, step-up-squat, step-up, heel rise, and sit-ups.
Dumbbells were used as extra weight (5 or 10% of body weight) during other exercises except for sit-ups.
The control group participated in an educational session once a month and kept physical activity diaries during the intervention period.
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At baseline and after 4 months of intervention
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공동 작업자 및 조사자
여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.
수사관
- 수석 연구원: Vera Novak, MD, PhD, Beth Israel Deaconess Medical Center
간행물 및 유용한 링크
연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.
연구 기록 날짜
이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.
연구 주요 날짜
연구 시작
2009년 7월 1일
기본 완료 (실제)
2010년 5월 1일
연구 완료 (실제)
2013년 12월 1일
연구 등록 날짜
최초 제출
2009년 6월 26일
QC 기준을 충족하는 최초 제출
2009년 6월 26일
처음 게시됨 (추정)
2009년 6월 29일
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
2017년 11월 13일
QC 기준을 충족하는 마지막 업데이트 제출
2017년 11월 2일
마지막으로 확인됨
2017년 11월 1일
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. .
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