Effect of Physical Activity an Stress in Children
The objective of the study is to evaluate the impact of physical activity in obese and nonobese prepubertal children on:
- biological stress responses during a psychosocial stress test
- snacking and feeling of hunger in response to the same psychosocial stress test
- the moderating factor of attachment on the biological stress responses and on snacking
Children will be investigated on one study day during 3.5 hours.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Hypotheses In this study, 3 primary hypotheses will be tested.
- Moderate physical activity during 25 min in children decreases the cortisol levels in response to the Trier Social Stress Test TSST-C (for children).
- Moderate physical activity during 25 min in children decreases the snacking (calorie consumption when corrected for expenditure and switch in quality of food intake) in response to the Trier Social Stress Test TSST-C (for children).
- A secure attachment will be a moderating factor for the general increase in cortisol and the snacking in response to the psychosocial stress test (Trier Social Stress Test TSST-C).
Secondary objectives:
- To test if the impact of physical activity on stress responses and snacking differs between obese and non-obese children
- To test the impact of physical activity on the cardiovascular stress reactivity (blood pressure, heart rate) and the perceived stress (scale) in response to the Trier Social Stress Test TSST-C?
- To test if the stress reactivity and its modulation by physical activity is different in anxious and in impulsives/labile children
- To test if serious life events and parental worries and parental educational style influence the stress reactivity
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
VD
-
Lausanne, VD, Switzerland, 1011
- Univeristy of Lausanne, SUPEA
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 7-10 year old children
Exclusion Criteria:
- Severe illness
- Medications interfering with study
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Acute physical activity intervention
25 min of moderate physical activity
|
25 min of physical activity.
The placebo arm will have 25 min of reading.
|
|
Placebo Comparator: Placebo
25 min of reading (instead of physical activity)
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Change in salivary Cortisol and maximal levels of salivary cortisol in response to the TSST stress test over 2 hours
Time Frame: 9 months
|
9 months
|
|
|
Snacking (Caloric intake, corrected for energy expenditure)
Time Frame: 9 months
|
Measure of caloric intake and measure of choice of high-caloric vs low-caloric food snacking after the TSST stress test
|
9 months
|
|
Moderator effect of attachment (4 different attachment categories), i.e. children with a secure attachment will have lower rises in cortisol compared with children in the other 3 attachment categories
Time Frame: 9 months
|
Cortisol levels after the TSST stress test will be lower in children with secure attachment compared to detached, disorganized or preoccupied children (i.e. the 3 other attachment categories).
|
9 months
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Moderator effect of obesity (WHO criteria)
Time Frame: 9 months
|
9 months
|
|
Cardiovascular reactivity (changes and maximal levels of blood pressure, heart rate)
Time Frame: 9 months
|
9 months
|
|
Perceived stress (stress scale from 1-7)
Time Frame: 9 months
|
9 months
|
|
Moderator role of serious life events and parental worries
Time Frame: 9 months
|
9 months
|
Collaborators and Investigators
Sponsor
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 286/12
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