An interventional study of ABPM and The arterial stiffness and endothelial reactivity in Knee Osteoarthritis and Blood Pressure, sponsored by University of Sao Paulo General Hospital. Status unknown. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2019-08-14.
Sponsored by University of Sao Paulo General Hospital · Not applicable, Interventional, and Treatment
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.
High Intensity Interval Training (HIIT), which consists of repeated high intensity exercise sessions interspersed with passive / active recovery, has been studied as a new approach to hypertension therapy and systemic arterial hypertension. HIIT training has also been shown to be able to reverse how the hemodynamic, metabolic and hormonal changes that are involved in the physiology of essential hypertension, leading to improved arterial stiffness and BP response, endothelin-1 and nitrite / nitrate to exercise, Increased cardiorespiratory capacity when moderate-intensity continuous exercise was performed in young women with a history of essential arterial 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 constitution change in overweight patients have shown that HIIT training is comparable to moderate-intensity continuous exercise, but HIIT is more efficient compared to the time spent during training, and HIIT can deliver savings of approximately 40% of the training time, which can facilitate the inclusion of training in the daily routine of patients.
In previous work by the investigators, patients undergoing an education and physical activity program showed improvement in WOMAC. Researchers believe that the inclusion of an HIIT training protocol may lead to improved BP and hemodynamic variables in patients with knee osteoarthritis.
4,398 studies on the registry are indexed under Osteoarthritis; 582 are open to participants now.
This study's planned enrollment of 63 is close to the median of 70 across 3,440 interventional studies indexed under Osteoarthritis.
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Exclusion Criteria:
Two days of lectures about knee OA, but will also come to the hospital after the first class to consult about nutritional habits to be improved; therapy session with the psychologists, sessions with the physical therapy team; sessions with the physical educators team. They will be submitted to 24-hour ambulatory blood pressure monitoring (ABPM) at baseline and at the end fo the study; The arterial stiffness and endothelial reactivity will be assessed by measurement of the carotid-femoral pulse wave velocity by means of a non-invasive automatic device at baseline and at the end fo the study; Answer EQ-5D-5L at baseline and at the end fo the study.
Behavioral: ABPM · Behavioral: The arterial stiffness and endothelial reactivity · Behavioral: Euroqol EQ-5D-5L · Behavioral: Lectures about knee OA
Two days of lectures about knee OA, but will also come to the hospital after the first class to consult about nutritional habits to be improved; therapy session with the psychologists, sessions with the physical therapy team; sessions with the physical educators team. The supervised exercise sessions will consist of 10 min of warm-up stretching exercises, 40 min of treadmill (40 min on treadmill at 60% of reserve heart rate), 20 min of sub-maximal strength training and 10 min of cooling exercises. They will be submitted to 24-hour ambulatory blood pressure monitoring (ABPM) at baseline and at the end of the study. The arterial stiffness and endothelial reactivity will be assessed by measurement of the carotid-femoral pulse wave velocity by means of a non-invasive automatic device at baseline and at the end of the study.
Behavioral: ABPM · Behavioral: The arterial stiffness and endothelial reactivity · Behavioral: Euroqol EQ-5D-5L · Behavioral: Lectures about knee OA · Behavioral: Continuous intensity exercise
Two days of lectures about knee OA, but will also come to the hospital after the first class to consult about nutritional habits to be improved; therapy session with the psychologists, sessions with the physical therapy team; sessions with the physical educators team. The supervised exercise sessions will consist of 10 min of warm-up stretching exercises, 40 min of treadmill (40 min on treadmill with alternating intensity between 50% and 80%) 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. They will be submitted to 24-hour ambulatory blood pressure monitoring (ABPM) at baseline and at the end of the study. The arterial stiffness and endothelial reactivity will be assessed by measurement of the carotid-femoral pulse wave velocity by means of a non-invasive automatic device at baseline and at the end of the study.
Behavioral: ABPM · Behavioral: The arterial stiffness and endothelial reactivity · Behavioral: Euroqol EQ-5D-5L · Behavioral: Lectures about knee OA · Behavioral: Exercises with varying intensity and interval
Ambulatory Blood Pressure Monitoring at Baseline and at the end of the study
The arterial stiffness and endothelial reactivity will be assessed at baseline and at the end of the study
Answer Euroqol EQ-5D-5L at baseline and at the end of the study
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).
40 min of treadmill physical exercise (40 min on treadmill at 60% of reserve heart rate.)
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.
Effects of high intensity exercise on blood pressure in individuals undergoing treatment for knee osteoarthritis
To assess the effect of high intensity versus continuous interval training of moderate intensity associated with an educational program on resting blood pressure.
Time frame: 16 weeks
Effects of high intensity exercise on quality of life
Evaluate whether the high-intensity interval training associated with an educational program improves the quality of life evaluated through the Euroqol (ranging from 0 to 1, with higher score indicating better)
Time frame: 16 weeks
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University of Sao Paulo General Hospital