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.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
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
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
VD
-
Lausanne, VD, Schweiz, 1011
- Univeristy of Lausanne, SUPEA
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- 7-10 year old children
Exclusion Criteria:
- Severe illness
- Medications interfering with study
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: 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 komparator: Placebo
25 min of reading (instead of physical activity)
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in salivary Cortisol and maximal levels of salivary cortisol in response to the TSST stress test over 2 hours
Tidsramme: 9 months
|
9 months
|
|
|
Snacking (Caloric intake, corrected for energy expenditure)
Tidsramme: 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
Tidsramme: 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
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Moderator effect of obesity (WHO criteria)
Tidsramme: 9 months
|
9 months
|
|
Cardiovascular reactivity (changes and maximal levels of blood pressure, heart rate)
Tidsramme: 9 months
|
9 months
|
|
Perceived stress (stress scale from 1-7)
Tidsramme: 9 months
|
9 months
|
|
Moderator role of serious life events and parental worries
Tidsramme: 9 months
|
9 months
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 286/12
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .