Effects of Interrupting Prolonged Sitting With Different Standing Intervals on Vascular Health in Women
The goal of this clinical trial is to examine the effects of interrupting prolonged sitting with different standing intervals on vascular health in healthy women aged 18-45 years. The main questions it aims to answer are:
Does interrupting prolonged sitting with short standing intervals (10 minutes every hour) improve blood pressure and pulse wave velocity more than prolonged continuous standing intervals (30 minutes every hour)? Does interrupting prolonged sitting with prolonged intermittent standing intervals (30 minutes every hour divided into three 10-minute standing bouts) improve blood pressure and pulse wave velocity more than prolonged continuous standing intervals (30 minutes every hour)?
The researcher will compare three different sitting interruption conditions to evaluate their effects on vascular health outcomes:
Standing for 10 minutes every hour. Continuous standing for 30 minutes every hour. Intermittent standing for 30 minutes every hour divided into three 10-minute standing bouts.
Participants will:
Attend three experimental sessions in random order separated by at least 7 days.
Complete 3 hours of sitting with different standing interruption protocols. Undergo measurements of blood pressure, pulse wave velocity, and heart rate before sitting and after each hour of the experiment.
Undergo height, weight, and body mass index measurements.
Study Overview
Status
Conditions
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Bushra k Alharbi
- Phone Number: +966556913301
- Email: bu1.kh2@gmail.com
Study Locations
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Riyadh, Saudi Arabia
- Recruiting
- King Saud University
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
Female participants aged 18-45 years. Healthy individuals with normal blood pressure levels (systolic blood pressure <130 mmHg and diastolic blood pressure <80 mmHg).
Body mass index (BMI) less than 30 kg/m². Ability to stand without support. No history of cardiovascular disease or chronic diseases that may affect study outcomes.
Exclusion Criteria:
Pregnancy or breastfeeding. Back injuries preventing prolonged sitting. Use of medications that may affect cardiovascular responses, including antihypertensive, antidiabetic, antidepressant, or hormonal medications.
Presence of chronic diseases or cardiovascular conditions affecting vascular health.
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Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
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Experimental: Short Standing Interval
Participants will complete 3 hours of sitting interrupted with 10 minutes of standing every hour.
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Participants will interrupt prolonged sitting with 10 minutes of standing every hour during 3 hours of sitting.
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Experimental: Continuous Standing Interval
Participants will complete 3 hours of sitting interrupted with 30 continuous minutes of standing every hour.
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Participants will interrupt prolonged sitting with 30 continuous minutes of standing every hour during 3 hours of sitting.
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Experimental: Intermittent Standing Interval
Participants will complete 3 hours of sitting interrupted with 30 minutes of standing every hour divided into three 10-minute standing bouts.
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Participants will interrupt prolonged sitting with 30 minutes of standing every hour divided into three 10-minute standing bouts during 3 hours of sitting.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Blood Pressure
Time Frame: Baseline, 1 hour, 2 hours, and 3 hours
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Systolic and diastolic blood pressure will be measured before sitting and after each hour during the experimental sessions.
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Baseline, 1 hour, 2 hours, and 3 hours
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Pulse Wave Velocity
Time Frame: Baseline, 1 hour, 2 hours, and 3 hours
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Baseline, 1 hour, 2 hours, and 3 hours
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Heart Rate
Time Frame: Baseline, 1 hour, 2 hours, and 3 hours
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Baseline, 1 hour, 2 hours, and 3 hours
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Collaborators and Investigators
Sponsor
Investigators
- Study Chair: Abdullah B Alansare, PhD, King Saud University
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- E-25-10479
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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