Hypertension, Hypertension,Essential
Conditions
Keywords
hypertension, isometric exercise, aerobic exercise
Brief summary
Introduction: Adequate blood pressure control is necessary to reduce the risk of mortality from cardiovascular events. The effects of aerobic exercise on systemic arterial hypertension are already well known, however, to date, there is little evidence regarding the effect of an isometric exercise session for the lower limbs on blood pressure levels, especially when performed in elderly hypertensive individuals. Objective: To verify the effect of an isometric or aerobic exercise protocol for the lower limbs on 24-hour ambulatory blood pressure in elderly hypertensive individuals.
Detailed description
Introduction: Adequate blood pressure control is necessary to reduce the risk of mortality from cardiovascular events. The effects of aerobic exercise on systemic arterial hypertension are already well known, however, to date, there is little evidence regarding the effect of an isometric exercise session for the lower limbs on blood pressure levels, especially when performed in elderly hypertensive individuals. Objective: To verify the effect of an isometric or aerobic exercise protocol for the lower limbs on 24-hour ambulatory blood pressure in elderly hypertensive individuals. Methods: Thirty-six controlled hypertensive volunteers, aged ≥ 60 years, of both sexes, will be randomly selected based on their medical records. Volunteers will be randomized to perform an isometric wall squat exercise session (n=12 - 4 repetitions of 2 minutes of execution and 2 minutes of rest, performed at a specific angle of the volunteer's knee joint - Borg scale of 11 to 13 points - moderate intensity) or an aerobic exercise session on a stationary bike (n=12 - 40 minutes and at moderate intensity stipulated between the range of 50% to 60% of HR reserve and Borg scale of 11 to 13 points - moderate intensity) or a control session without exercise, 40 minutes per session (n=12). 24-hour Ambulatory Blood Pressure Monitoring will be performed pre- and post-session. Statistical analyzes will be performed using the ANOVA test (one way), power of 80% and alpha 95%, SPSS-26.0.
Interventions
OTHERGroup control
Group control The control session will consist of keeping the volunteer sitting in a calm, air-conditioned environment for 40 minutes.
OTHERIsometric Exercise
The intervention with isometric exercise for the lower limbs, the volunteers will start in a vertical position, with shoulders and hips in contact with the wall, feet parallel and shoulder-width apart and hands at the sides of the body. Then (second phase), the volunteers, maintaining contact with the wall, squatted and advanced their feet in the desired position until the knee joint angle reached the previously determined value. The third phase referred directly to the isometric effort of the isometric exercise session. For the isometric wall squat exercise session, volunteers will be asked to perform 4 repetitions of 2 minutes, with a 2-minute rest interval in a seated position for adequate rest between each repetition.
OTHERAerobic Exercise
Volunteers will perform 50 minutes of horizontal exercise cycling (brand: pro-user), continuously and at moderate intensity (50% to 60% of HR reserve).
Sponsors
Instituto de Cardiologia do Rio Grande do Sul
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Intervention model description
The RCT will involve thirty-six elderly volunteers (≥ 60 years of age) with systemic arterial hypertension, aiming to compare two types of physical exercise sessions, isometric wall squats and an aerobic exercise session on an exercise bike, on the 24-hour blood pressure levels.
Eligibility
Sex/Gender
ALL
Age
60 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* Hypertensive elderly; * Both genders; * Aged ≥ 60 years; * Hypertensive patients on continuous use of antihypertensive medication; * Hypertensive who did not practice physical exercise regularly (≥ 2 sessions per week).
Exclusion criteria
* Those who presented one of the following issues will be excluded: * Diabetes mellitus; * Chronic renal failure; * Body mass index (BMI) ≥ 35 kg/m2; * Coronary artery disease; * Heart failure; * Any injury to the lower limbs; * Smokers.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 24-hour Ambulatory Blood Pressure Monitoring | Until completion of the study, on average 4 months. | Check 24-hour blood pressure levels (24-hour Ambulatory Blood Pressure Monitoring) obtained after an isometric squat session in elderly individuals with SAH and compare BP levels after an exercise session on a stationary bike and the control group. |
Countries
Brazil
Contacts
Primary ContactLIDIANE PAIVA STOCHERO P STOCHERO, higher
Outcome results
None listed