Effects of Interrupting Prolonged Sitting With Different Standing Intervals on Vascular Health in Women

King Saud University24 enrolled

Overview

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 Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

BASIC_SCIENCE

Masking

NONE

Enrollment

Conditions

Prolonged Sitting

Interventions

Short Standing IntervalBEHAVIORAL

Participants will interrupt prolonged sitting with 10 minutes of standing every hour during 3 hours of sitting.

Continuous Standing IntervalBEHAVIORAL

Participants will interrupt prolonged sitting with 30 continuous minutes of standing every hour during 3 hours of sitting.

Intermittent Standing IntervalBEHAVIORAL

Participants will interrupt prolonged sitting with 30 minutes of standing every hour divided into three 10-minute standing bouts during 3 hours of sitting.

Eligibility

Sex: FEMALEMin age: 18 YearsMax age: 45 YearsHealthy volunteers:

Medical Language ↔ Plain English

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. \-

Outcomes

Primary Outcomes

Blood Pressure

Systolic and diastolic blood pressure will be measured before sitting and after each hour during the experimental sessions.

Time frame: Baseline, 1 hour, 2 hours, and 3 hours

Pulse Wave Velocity

Time frame: Baseline, 1 hour, 2 hours, and 3 hours

Heart Rate

Time frame: Baseline, 1 hour, 2 hours, and 3 hours

Effects of Interrupting Prolonged Sitting With Different Standing Intervals on Vascular Health in Women

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Central Contacts