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MenopauseNCT03531034

Ambulatory and Blood Pressure Variability Responses to Exercise in Normotensive and Hypertensive Women

A study testing Combined Exercise Training in people with Menopause and Exercise, run by Federal University of Uberlandia at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study evaluated the differences between normotensive and hypertensive menopausal women in ambulatory and blood pressure variability responses to combined aerobic and resistance exercise. Read more about this study

Who is it for?
Ages 50 to 70 years, women onlyHealthy volunteers can take part
Conditions the study is for
Menopause, Exercise, Blood Pressure, High
What is being tested?
Combined Exercise Training
Could I receive a placebo?
No, everyone receives an active treatment
How many people
26 participants
Where
1 siteBrazil
Study dates
1 Mar 2014to 25 Dec 2016
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 to 70 years
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • amenorrhea for at least 12 months; body mass index ≤30 kg/m2; ability to engage in treadmill and resistance exercises; hypertension nom-medicated with beta-blockers

Who cannot join

  • history of diabetes, cancer or cardiovascular disease (except for hypertension in Hypertensive group); doing hormone therapy or soy derived supplementation; smokers

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Guilherme Morais Puga

    Uberlândia, Minas Gerais, 38400-678

Other trials in Brazil

About this study

Official title: Ambulatory and Blood Pressure Variability Responses to Combined Exercise in Normotensive and Hypertensive Menopausal Women

This study evaluated the differences between normotensive and hypertensive menopausal women in ambulatory and blood pressure variability responses to combined aerobic and resistance exercise.

Read the detailed description

The differences in hypotensive and cardioprotective responses of exercise among menopausal hypertensive and normotensive women are still not very clear, mainly the responses of blood pressure variability. In this way, were evaluated 6 indices related to the variability of 24 hour ambulatory pressure measurements in these women before and after 12 weeks of combined exercise training.

Being tested
Combined Exercise Training
Keywords
Blood Pressure Variability, Ambulatorial Blood Pressure Monitoring, Combined Exercise
Medical subject headings
Motor Activity, Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Combined Exercise TrainingOther

    The program consisted of 30 sessions of combined aerobic and resistance exercises training during 10 consecutive weeks. Each session lasted 45 minutes and consisted of 5 minutes warm-up, 20 minutes of resistance exercise and 20 minutes of aerobic exercise. The resistance training was performed in two sets of 15 repetitions in seven exercises of weight training (Based on 1 repetition maximum test - 1RM) for large muscle groups. The aerobic exercise was performed on a treadmill, at a speed of 5.5 km/h and intensity (imposed by treadmill inclination and heart rate) between ventilatory threshold 1 and 2 intensities. After 5 weeks of training, 1RM test was performed again to readjust the resistance load and aerobic intensity was readjusted by heart rate predicted in the incremental test.

Study groups in NCT03531034
Study groupRoleWhat they receive
Hypertensive WomenExperimentalGroup of hypertensive and controlled women who practiced 10 weeks of training with Combined Exercise Training, non-obese, nonsmokers and with no characteristics that prevented them from performing the activities. In addition this group could not modify the dose or type of the medicine and should be using the same medicine and dose for at least 6 months
Receives: Other: Combined Exercise Training
Normotensive WomenActive comparatorGroup of normotensive women who practiced 10 weeks of training with Combined Exercise Training, non-obese, nonsmokers and with no characteristics that prevented them from performing the activities.
Receives: Other: Combined Exercise Training

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in Ambulatorial Blood Pressure

    All volunteers were submitted to a 24-hour Blood Pressure (BP) assessment by Ambulatorial Blood Pressure Monitoring (ABPM) before and after 10 weeks of combined exercise training, with a minimum of 48 hours after the last training session. A device was used associated with a diary of examination to self-report of activities of daily living (sleep, work, food) or any event that could interfere abnormally with BP or device measurements. The device was always placed 7am and the measurements were made every 15 minutes from 7h to 23h and every 30 minutes from 23h to 7h. The monitoring was considered valid when it happened for a period of 24 hours. The following results were evaluated: systolic blood pressure; diastolic blood pressure, mean blood pressure and heart rate in awake, sleep and 24-hour periods. Before the use ABPM during daily activities, resting blood pressure were measured using the same equipment after 15 min of rest in siting position.

    Measured: Before and within 72 hours after 10 weeks of exercise training

Secondary outcomes (3)
  1. Changes in Ambulatorial Blood Pressure Variability

    Based on Ambulatorial Blood Pressure data, were calculated Blood Pressure Variability by: 24-hour standard deviation weighted by the time interval between consecutive readings; the mean diurnal and nocturnal deviations weighted for the duration of the daytime and nighttime interval; the average real variability weighted for the time interval between consecutive readings; the ambulatory arterial stiffness index calculated by the slope of the trend curve of the dispersion of pressure data; the morning surge that represents the dynamic daytime variation in morning pressure that tends to increase, being assessed from the point of least pressure during sleep in relation to the first two hours after waking; and nocturnal dipping, that represents the average percentage drop of sleep pressure in relation to wakefulness, and individuals with falls of 10% or more are considered dippers and below that are considered nom-dippers.

    Measured: Before and within 72 hours after 10 weeks of exercise training

  2. Changes in Heart Rate Variability

    Heart Rate (HR) was recorded using a heart rate monitor in a beat-by-beat basis. HR was registered in a seat position for 20 min of rest. Prior to the HR Variability (HRV) analysis, the RR intervals (RRi) were visually inspected and filtered using a moving average filter. The HRV was analyzed in both time-, frequency- and nonlinear-domain. Being that for frequency-domain analysis, firstly the RRi series were interpolated at 4 Hz and then the signal linear trend component removal was performed using the smooth priors approach.

    Measured: Before and within 72 hours after 10 weeks of exercise training

  3. Changes in salivary oxidative stress

    The salivary was collected after 12-hours fasting and the total antioxidant capacity was evaluated using the Ferric-Ability of Plasma (FRAP) methodology and calculated from the standard trolox curve. The activity of the enzyme superoxide dismutase (SOD) was determined based on the auto oxidation capacity of pyrogallol and catalase activity (CAT) by monitoring the consumption of hydrogen peroxide at 240 nm. Lipid peroxidation levels were determined by the TBARS method (thiobarbituric acid reactive substances), using as standard a curve of 1,1,3,3-tetraethoxypropane (TMP). The total protein concentration was obtained by the Bradford method (BRADFORD, 1976), using bovine serum albumin (BSA) as standard. The amounts of nitric oxide (NO) were estimated by the determination of total nitrite by the Griess colorimetric method.

    Measured: Before and within 72 hours after 10 weeks of exercise training

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 May 2018
  2. Study start1 Mar 2014
  3. Primary completion25 Dec 2015
  4. Study completion25 Dec 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
26 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03531034
Sponsor's protocol ID
40622414.9.0000.5152
Status last verified
Jan 2021
First submitted
17 Apr 2018
Last updated
11 Jan 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Combined Exercise Training in people with Menopause and Exercise, run by Federal University of Uberlandia at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in Ambulatorial Blood Pressure (time frame: Before and within 72 hours after 10 weeks of exercise training). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Jan 2021.

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