Effect of Isometric and Aerobic Physical Exercise on Blood Pressure Levels in Hypertensive Elderly People: Randomized Clinical Trial
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 36
- 试验地点
- 2
- 主要终点
- 24-hour Ambulatory Blood Pressure Monitoring
研究概览
简要总结
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.
详细描述
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 60 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •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).
排除标准
- •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;
研究组 & 干预措施
Aerobic Exercise
Volunteers will perform 50 minutes of horizontal exercise cycling (brand: pro-user), continuously and at moderate intensity (50% to 60% of HR reserve).
干预措施: Aerobic Exercise (Other)
Group control
The control session will consist of keeping the volunteer sitting in a calm, air-conditioned environment for 40 minutes.
干预措施: Group control (Other)
Isometric 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.
干预措施: Isometric Exercise (Other)
结局指标
主要结局
24-hour Ambulatory Blood Pressure Monitoring
时间窗: 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.
次要结局
未报告次要终点