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Breaking Sitting and Metabolic Health in Sedentary Overweight and Obese Adults

Not Applicable
Completed
Conditions
Gut Hormones
Energy Balance
Metabolic Health
Interventions
Behavioral: Breaking sitting
Behavioral: Prolonged sitting
Registration Number
NCT05306678
Lead Sponsor
National Taiwan Normal University
Brief Summary

The purpose of this project is to investigate the effects of breaking up prolonged sitting on postprandial metabolic responses, gut hormones secretion and energy balance in sedentary overweight and obese adults.

Detailed Description

Two trials are included in this project - Prolonged sitting and Breaking sitting.

In the Prolonged sitting trial, after consuming breakfast, participants sat on a chair for 180 min. After 180 min, lunch was provided. After finishing lunch, participants sat on a chair for another 120 min. In the Breaking sitting trial, after consuming breakfast, participants walked 2 min on a treadmill every 20 minutes for the following 180 min. For the remainder of the time participants sat on the chair. After 180 min, lunch was provided. After finishing lunch, participants continued 2 min of walking every 20 min for the following 120 min. Blood samples were collected in a regular pattern throughout the trials. Energy balance (e.g., energy intake and spontaneous physical activity) was assessed using food diary and an accelerometer until midnight in the trial days once participants left laboratory.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
13
Inclusion Criteria
  • Physical inactive males and females
  • Aged between 20 and 45 years
  • Overweight and obese healthy adults (waist circumference greater than 90 cm for males and 80 cm for females)
  • Weight stable for more than 3 months (no change in weight +/- 3%)
  • Non-smoker
  • Able to walk comfortably on a treadmill
Exclusion Criteria
  • Personal history of/existing diabetes, cardiovascular disease, metabolic disease or dyslipidaemia
  • Waist circumference < 90 cm for male and < 80 cm for female
  • Taking medications that may influence lipid or carbohydrate metabolism or immune system function
  • Unable to take part in exercise for any reason (e.g., injury or disability) or a positive response to any questions on the Physical Activity Readiness questionnaire (PAR-Q)

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Breaking sittingBreaking sittingBreaking prolonged sitting
Prolonged sittingProlonged sittingProlonged sitting
Primary Outcome Measures
NameTimeMethod
Gut hormones responses320 minutes

Changes in blood gut hormones responses (e.g., GLP-1, PYY and GIP concentrations measured in pmol/L) between trials

Secondary Outcome Measures
NameTimeMethod
Lipid profile320 minutes

Changes in blood lipid profile (e.g., TAG and cholesterol, etc.) between trials

Visual analogue scale (VAS)320 minutes

Changes in VAS from 0-100 mm (e.g., appetite and mood, etc.) between trials

Computerized cognitive testing320 minutes

Changes in cognitive function (e.g., accuracy and reaction time) between trials

Physical activity level600 minutes after leaving the labalotory

Changes in physical activity level (e.g., using an accelerometer to record) after leaving the laboratory until midnight

Energy intake600 minutes after leaving the labalotory

Changes in energy intake (e.g, using a food diary to record) after leaving the laboratory until midnight

Incremental area under curve (iAUC) for metabolic health320 minutes

Changes in incremental area under curve (iAUC) for insulin and glucose between trials

Blood pressure320 minutes

Changes in blood pressure (e.g., diastolic and systolic blood pressure) between trials

Trial Locations

Locations (1)

National Taiwan Normal University

🇨🇳

Taipei, Taiwan

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