Decrease in Blood Pressure in PARQVE

Summary

The tripod of OA clinical treatment is education, weight loss and exercise. A sedentary lifestyle has been characterized as an independent risk factor for cardiovascular disease. Studies have shown the inverse association between the level of physical activity and the incidence of cardiovascular disease. High Intensity Interval Training (HIIT), which consists of repeated high-intensity exercise sessions interspersed with passive recovery. Active, has been studied as a new therapeutic approach and has been shown to be effective in controlling blood pressure (BP) and arterial stiffness in treated hypertensive individuals. HIIT training has also been shown to be able to reverse the hemodynamic, metabolic and hormonal changes that are involved in the pathophysiology of essential hypertension, leading to improved arterial stiffness and BP response, endothelin-1 and nitrite / nitrate to exercise, increased cardiorespiratory fitness when compared to moderate-intensity continuous exercise in young women with a family history of essential hypertension. Six weeks of HIIT training (3 times / week) reduced body fat and waist circumference in young women. , while increasing fat-free mass, maximum running speed and aerobic fitness. Two recent studies evaluating body weight change in overweight patients have shown that HIIT training is comparable to moderate-intensity continuous exercise, but HIIT is more efficient compared to time spent training, which may facilitate the inclusion of daily routine training of patients. Previous work performed by the authors patients undergoing an education and physical activity program showed improvement in WOMAC. The investigators believe that the inclusion of an HIIT training protocol may lead to improved BP and hemodynamic variables in patients with knee osteoarthritis. To evaluate the effect of high intensity interval physical training associated with an educational program on BP, hemodynamic variables of individuals undergoing treatment for knee OA. 63 patients with knee OA will be randomized into 3 groups: interval exercise (21), continuous exercise (21) and control (21). Patients will be evaluated for BP using ABPM, arterial stiffness and endothelial reactivity by measuring carotid-femoral pulse wave velocity and quality of life using the Euroqol scale.

Conditions

• Knee Osteoarthritis
• Blood Pressure

Interventions

BEHAVIORAL

ABPM

Ambulatory Blood Pressure Monitoring at Baseline and at the end of the study

BEHAVIORAL

The arterial stiffness and endothelial reactivity

The arterial stiffness and endothelial reactivity will be assessed at baseline and at the end of the study

BEHAVIORAL

Euroqol EQ-5D-5L

Answer Euroqol EQ-5D-5L at baseline and at the end of the study

BEHAVIORAL

Lectures about knee OA

Patients will participate in two days of lectures two-months apart on the subject of knee OA, but will also come to the hospital at months 1, 3 and 5 after the first class to consult about nutritional habits to be improved; at months 4 and 6 to participate in a group therapy session with the psychologists, 7 sessions with the physical therapy team followed by 7 sessions with the physical educators team (once a week/4 weeks and once every two weeks, three times).

BEHAVIORAL

Continuous intensity exercise

40 min of treadmill physical exercise (40 min on treadmill at 60% of reserve heart rate.)

BEHAVIORAL

Exercises with varying intensity and interval

40 min of treadmill physical exercise ( 40 min on treadmill with alternating intensity between 50% (2 min) and 80% (1 min) of HR, resulting in an average load of 60% ((50% 2) + 80% / 3)), 20 min of sub-maximal strength training and 10 min of cooling exercises.

Sponsors & Collaborators

• University of Sao Paulo General Hospital

  lead OTHER

Principal Investigators

• Guilherme Ocampos, MD · University of São Paulo General Hospital

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

60 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2019-10-01

Primary Completion

2020-02-28

Completion

2020-03-31