Exercise Program in Women With Metabolic Syndrome
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
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Massachusetts
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Boston, Massachusetts, Forenede Stater, 02215
- Beth Israel Deaconess Medical Center, Harvard University
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
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
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Eksperimentel: 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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Ingen indgriben: UC
Usual Care (UC) with Educational Lectures: No exercise sessions.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Maximal Oxygen Uptake
Tidsramme: 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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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Cerebral Blood Flow Velocity (BFV)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Vera Novak, MD, PhD, Beth Israel Deaconess Medical Center
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 2009P000121
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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