About this trial
The treatment of high blood pressure, or hypertension, is multifaceted and can include pharmacological therapies (i.e., medications) and lifestyle modifications such as physical activity. Chronotherapy, which describes timing of a treatment with the body's daily rhythms, has recently been used with hypertension medications and has been shown to be effective at lowering blood pressure and reducing the risk of cardiovascular disease events. Specifically, taking medications in the evening was shown to be more effective than morning medication routines. Little information is available about the effectiveness of chronotherapy combined with exercise (i.e., planned physical activity) interventions in older adults with hypertension. The purpose of this study is to examine how exercise training performed in the morning and early evening affects blood pressure and other measures of blood vessel health in postmenopausal females with hypertension.
Eligibility criteria
Qualifiers
Systolic BP equal to or greater than 130 mmHg without BP medication or greater than 120 mmHg with medication and diastolic blood pressure equal to and greater than 80 mmHg
55-80 years old
Post-menopausal female
Able to walk without assistance
Disqualifiers
Habitually physically active defined as 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity aerobic physical activity per week
Overt pulmonary disease/condition as follows: chronic bronchitis, chronic obstructive pulmonary disease, emphysema, or pulmonary hypertension
Cardiometabolic disease/condition as follows: diabetes, heart failure, peripheral arterial disease, stroke, coronary artery disease, renal disease, secondary hypertension, chronic venous insufficiency or deep vein thrombosis within last 6 months
Cancer within last 5 years
Trial design
Treatments tested in this trial
- 6 weeks of exercise training (Pre-training)
- 6 weeks of exercise training (Post-training)
Treatment groups
Sponsors and collaborators
Michigan State University
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
Collaborator