Cardiac Response to Strength Training in Hypertensive Individuals

NCT ID: NCT06370546

Last Updated: 2025-09-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

28 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-20

Study Completion Date

2024-07-20

Brief Summary

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This study aims to determine the acute effects of high and low-intensity strength training on cardiac autonomic control in hypertensive subjects

Detailed Description

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The present study aims to determine the cardiovascular response in hypertensive individuals between 30 and 60 years old to one session of high and low intensity strength training.

Participants will undergo a low-intensity strength training including squats, barbell rows, deadlifts and chest presses with a load dynamic of 12 repetitions for 6 sets at an execution speed of less than 55 % of your maximum weight. This is followed by a one-week washout period. Subsequently, high intensity strength training is performed with the same exercises but with a load of 6 repetitions for 6 series at an intensity greater than 80% of the maximum repetition speed. The order of the sessions will be random.

After each session, blood pressure will be recorded for 24 hours using a holter monitor, which will report pressures during both day and night

The results obtained will be determined by the differences in the before and after values. Consequently, the behavior of the following variables: 1) heart rate variability, 2) blood pressure and 3) heart rate will determine the final results of this research.

The entire study will be carried out at the Catholic University of Maule, in its Kinesiology laboratory.

Conditions

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Physical Exercise Hypertension

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Randomized clinical trial, single blinded.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Low Intensity

The low-intensity group undergoes a strength training program using barbells, weights and dumbbells, consisting of 6 sets of 12 repetitions each, with an execution speed below 40% of the maximum velocity used in the one-repetition maximum

Group Type EXPERIMENTAL

Low intensity

Intervention Type OTHER

Low intensity group: participants will be requested to perform the following exercises: 1)squat, 2) rowing, 3)deadlift and 4)bench press. All exercises will be performed with low intensity (40% of the maximum velocity used in one-repetition maximum) and will be supervised by a researcher.

high intensity

The low-intensity group undergoes a strength training program using barbells, weights and dumbbells consisting of 6 sets of 6 repetitions each, with an execution speed equal to or greater than 80% of the maximum velocity used in the one-repetition maximum

Group Type EXPERIMENTAL

high intensity

Intervention Type OTHER

High intensity group: participants will be requested to perform the following exercises: 1)squat, 2)rowing, 3)deadlift and 4)bench press. All exercises will be performed with high intensity (80% of the maximum velocity used in one-repetition maximum) and will be supervised by a researcher.

Interventions

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Low intensity

Low intensity group: participants will be requested to perform the following exercises: 1)squat, 2) rowing, 3)deadlift and 4)bench press. All exercises will be performed with low intensity (40% of the maximum velocity used in one-repetition maximum) and will be supervised by a researcher.

Intervention Type OTHER

high intensity

High intensity group: participants will be requested to perform the following exercises: 1)squat, 2)rowing, 3)deadlift and 4)bench press. All exercises will be performed with high intensity (80% of the maximum velocity used in one-repetition maximum) and will be supervised by a researcher.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Participants exclusively diagnosed with hypertension by a medical professional

Exclusion Criteria

* Participants with any other chronic medical condition
* Subjects with any upper or lower limb injury that prevents strength training
* Subjects with cardiovascular abnormalities other than hypertension
Minimum Eligible Age

30 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Universidad Católica del Maule

OTHER

Sponsor Role lead

Responsible Party

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Antonio Roberto Zamunér

Adjunct Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Universidad Católica del Maule

Talca, Maule Region, Chile

Site Status

Countries

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Chile

Other Identifiers

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229/2022

Identifier Type: -

Identifier Source: org_study_id

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