Sixteen Weeks of Resistance Training in Hypertensive Elderly, Effects on Heart Rate Variability

Study Overview
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Brief Summary
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This study evaluates the inffluence of 16 weeks of resistance training on heart rate variability of hypertensive elderlies patients. All volunteers will be divided in two groups, one will participate in a protocol of sixteen weeks of resistance training, an the other will remain sedentary.

Detailed Description
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This study evaluates the inffluence of 16 weeks of resistance training on heart rate variability using time and frequency-domains by ECG tracks. Will be assessed the blood pressure using the ambulatory blood pressure monitoring method of hypertensive elderly patients. All volunteers will be divided in two groups, one will participate in a protocol of sixteen weeks of resistance training prescribed with a relative workload of 50% of 1 maximal repetition, an the ontrol group will remain sedentary.

Official Title
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Sixteen Weeks of Resistance Training in Hypertensive Elderly, Effects on Heart Rate Variability

Conditions
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Hypertension

Intervention / Treatment
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* Behavioral: Resistance training


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Hypertensives Age 60 to 80 years Nonactive Exclusion Criteria: Orthopedic problems or other problem that prevented the exercises Change in drug treatment during protocol Absence in more than 25% of the exercise sessions

Ages Eligible for Study
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Minimum Age: 60 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Resistance training<br>Resistance training performed three times at week for 16 weeks, in 8 exercises for the main muscles, the protocol of 3 sets of 10 repetitions with intensity of 50% of 1 maximum repetition (MR). | Behavioral: Resistance training<br>* Resistance training performed three times at week for 16 weeks, in 8 exercises for the main muscles, the protocol of 3 sets of 10 repetitions with intensity of 50% of 1 maximum repetition (MR).<br>|
| No Intervention: Control<br>in this arm, the group will remain sedentary for the same period of the experimental group, and they will be invited to engage on the raining program after the sedentary period | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Blood pressure change due to resistance training | Blood pressure will be measured by Ambulatorial Monitoring Blood Pressure before and after 16 weeks of intervention. | 16 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Heart rate variability - Time domain - change due to resistance training | Heart rate variability will be collected by electrocardiogram before and after 16 weeks of intervention | 16 weeks | 
| Heart rate variability - Frequency domain - change due to resistance training | Heart rate variability will be collected by electrocardiogram before and after 16 weeks of intervention | 16 weeks | 
| Heart rate variability - Non-linear methods - change due to resistance training | Heart rate variability will be collected by electrocardiogram before and after 16 weeks of intervention | 16 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Hypertension, Elderly, Resistance training, Heart rate variability