Exercise and Vascular Function in Postmenopausal Females With Hypertension

Hypertension Clinical Trial

Official title:

The Effects of Exercise Time of Day on Blood Pressure and Vascular Function

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT05597033
• Other study ID #: R56HL164575-Study1
• Secondary ID: R56HL164575-01
• Status: Recruiting
• Phase: N/A
• Start date: January 9, 2023
• Est. completion date: August 31, 2024

Study information

• Verified date: June 2024
• Source: Michigan State University
• Contact: Jill Slade, PhD
• Phone: 517-884-3351
• Email: jslade[@]msu.edu
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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 performed in the morning and early evening affects blood pressure and other measures of blood vessel health in postmenopausal females with hypertension.

Description:

Blood pressure has an internal rhythm associated with the 24-hr clock. Nocturnal blood pressure (BP) is a key contributor to cardiovascular health and may be improved by exercise. Moreover, the time of day of the exercise may be a key factor. This study aims to evaluate the effect of evening exercise on BP and other measures of vascular function in older females with hypertension.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 47
• Est. completion date: August 31, 2024
• Est. primary completion date: August 31, 2024
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 55 Years to 80 Years

Eligibility

Inclusion Criteria:

• 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

Exclusion Criteria:

• 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

• Body mass index >39 kg/m2

• Current smoking or vape

• Evening shift work

Related Conditions & MeSH terms

• Hypertension

Intervention

Behavioral:
• Exercise
walking and handgrip exercise
• Control
seated rest

Locations

Country	Name	City	State
United States	Michigan State University	East Lansing	Michigan

Sponsors (2)

Lead Sponsor	Collaborator
Michigan State University	National Heart, Lung, and Blood Institute (NHLBI)

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Ambulatory blood pressure	Systolic and diastolic BPs over a 24-hr period	24 hours
Primary	Nocturnal systolic blood pressure (BP)	Reduction in systolic nocturnal BP (exercise-control)	24 hours
Secondary	Early post-exercise hypotension	Post-exercise systolic BP (exercise - control)	30 minutes
Secondary	Endothelial function	Flow mediated dilation of the brachial artery	24 hours
Secondary	Microvascular function	Rapid onset vasodilation of the popliteal artery	24 hours