Pediatric Obesity
Conditions
Keywords
appetite control, obesity, Adolescents, exercise, Energy Deficit
Brief summary
The aim of the present study is to compare the effect of iso-energetic energy deficits induced by exercise or dietary restriction on energy intake and appetite feelings in adolescents with obesity
Detailed description
The present study will compare the nutritional response to an energy deficit of 400 kcal induced once by realisation of an acute exercise set at moderate intensity and once by a dietary restriction imposed at lunch (compared with a control condition). 18 adolescents with obesity will be asked to randomly complete three experimental sessions: i) one control session (CON); ii) one session with an exercise-induced energy deficit (Def-EX); iii) one session with an energy restriction-induced energy deficit (Def-EI). Their ad libitum energy intake will be assessed during dinner time. Appetite feelings will be assessed at regular intervals and their food reward in response to the lunch will also be assessed.
Interventions
BEHAVIORALCon : control condition without exercise / rest condition
Control condition without exercise / rest condition. The adolescents will be asked to remain quiet and at rest during the morning and will receive an ad libitum meal at dinner time. Their food reward will be assessed before dinner. Their appetite feelings will be assessed at regular intervals.
BEHAVIORALDef-EX : Condition with an exercise-induced energy deficit
Condition with an exercise-induced energy deficit The adolescents will be asked to complete an acute exercise set at 65% of their capacities (cycling) during the afternoon, inducing an energy expenditure of 400 kcal. Dinner will be served ad libitum. Their food reward will be assessed before dinner. Their appetite feelings will be assessed at regular intervals.
BEHAVIORALDef-EI : Condition with an energy-restriction energy deficit
Condition with an energy-restriction energy deficit The adolescents will be asked to remain quiet during the whole day (no physical activity). They will receive a calibrated breakfast reduced from 400 kcal compare to their CON and Def-EX conditions. Dinner will be served ad libitum. Their food reward will be assessed before dinner. Their appetite feelings will be assessed at regular intervals.
Sponsors
University Hospital, Clermont-Ferrand
Tza Nou - Maison médicale pour enfants et adolescentes
Laboratoire des Adaptations Métaboliques à l'Exercice en conditions Physiologiques et Pathologiques
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
12 Years to 17 Years
Healthy volunteers
Yes
Inclusion criteria
* BMI percentile \> 97th percentile according to the french curves. * ages 12-16 years old * Signed consent form * being registered in the national social security system * no contraindication to physical activity
Exclusion criteria
* Previous surgical interventions that is considered as non-compatible with the study. * Diabetes * weight loss during the last 6 months * cardiovascular disease or risks
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from different intervention of energy intake measured during an ad libitum buffet meal (in kcal) | day 1, day 8, day 15 | food intake will be measured ad libitum during a dinner buffet. The adolescents will be offered an ad libitum buffet-type meal composed based on their food intake preferences. Their intake will be weighted using an electronic food scale by a member of the investigation team and then analysed using Bilnuts software. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Hunger feelings | day 1, day 8, day 15 | hunger area under the curve will be assessed using visual analogue scale through a the day |
| Food reward | day 1, day 8, day 15 | The participants will be asked to complete a validated computer-based procedure to measure food reward (Leeds Food Preference Questionnaire; LFPQ) |
Countries
France
Contacts
PRINCIPAL_INVESTIGATORValérie JULIAN
University Hospital, Clermont-Ferrand
Outcome results
None listed