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CONTROL ConditionSMASHNCT06017440

Effect of Acute Exercise on Sensory and Hedonic Responses to a Fixed Meal in Adolescents With Obesity

A study testing EXERCISE in people with CONTROL Condition and Exercise, run by University Hospital, Clermont-Ferrand at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

While long considered independently, energy expenditure and energy intake have been shown to interact. Fot the last 20 years, the litterature has been describing tyhe effects of an acute bout of exercise on subsequent energy intake and appetitive responses, indicating a potenital anorexigenic effect of intensive… Read more about this study

Who is it for?
Ages 11 to 16 yearsHealthy volunteers can take part
Conditions the study is for
CONTROL Condition, Exercise
What is being tested?
EXERCISE
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteFrance
Study dates
1 Jul 2023to 17 Oct 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 11 to 16 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Subjects aged 11 to 16 years (inclusive limits), maturation stage 3-5 according to the Tanner classification, with obesity defined by a body mass index (BMI) greater than the 97th percentile according to national curves (Roland- Cachera et al., 1991).
  • Adolescent who has signed the information and consent form and whose holders of parental authority have signed the information and consent form
  • Person subject to a Social Security scheme

Who cannot join

  • Medical or surgical history deemed by the investigator to be incompatible with the study
  • Presence of diabetes, and any other pathology limiting the application of one or the other strategy to the trial.
  • Taking medications that may interfere with the results of the study
  • Subjects with cardiovascular problems, here we are talking about subjects with a history of cardiovascular and/or neurovascular pathology, as well as subjects presenting cardiovascular and/or neurovascular risk factors (excluding obesity/ overweight).
  • Surgical intervention in the previous 3 months.
  • Subjects undergoing energy restriction or weight loss program through physical activity at the time of inclusion or during the last six months.
Show all 13Show fewer
  • Consumption of tobacco or alcohol.
  • Special diet.
  • Participation in regular and intense physical and sports activities for more than two hours per week.
  • Teenagers whose parents are under guardianship, curatorship, safeguard of justice or not subject to a social security system
  • Refusal to sign the information and consent notice
  • Person in period of exclusion from another study
  • Pregnant or breastfeeding adolescents on declarative

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHU de Clermont-Ferrand

    Clermont-Ferrand

Other trials in France

About this study

While long considered independently, energy expenditure and energy intake have been shown to interact. Fot the last 20 years, the litterature has been describing tyhe effects of an acute bout of exercise on subsequent energy intake and appetitive responses, indicating a potenital anorexigenic effect of intensive exercise in adolescents with obesity. These studies suggest a decrease in hunger, redcued satiety and modified food reward responses.

These results remain however obtained in studies using post exercise ad libitum test meals and this nature of the meal might ahve impact these responses.

The present work tends to assess the effect of acute exercise on subsequent appetite and food reward responses to a fixed meal, in adolescents with obesity.

Read the detailed description

After an inclusion visit to ensure the aptitude of adolescents to complete the entire study, each will have to carry out densitometric measurements (body composition and bone structure). The adolescents will then carry out, in a randomized manner, 2 experimental sessions spaced at least 7 days apart: i) a control session (CON); ii) a session with a pedaling exercise at 65% of their estimated maximum capacity (EX).

During each of these experimental sessions, teenagers will receive a calibrated breakfast at 08:00 am. During the CON session, teenagers should not perform any physical activity during the day and they will be asked to stay at 11 a.m., for 30 minutes, resting in a semi-supine position. During the EX session, teenagers will perform moderate-intensity physical exercise (65% of their estimated maximum capacity) at 11 a.m. At noon, the teenagers will have to consume a calibrated meal. Questionnaires on feelings of hunger will be distributed to them at regular intervals. They will also be asked to complete a 10-minute computer exercise to assess their relationship to food just before and just after the calibrated midday meal (LFPQ. Leeds Food Preference Questionnaire, Liking/Wanting, French version). Sixty minutes after the calibrated meal, teenagers will have an ad libitum buffet available for one hour.

Being tested
EXERCISE, CONTROL
Medical subject headings
Motor Activity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • EXERCISEBehavioural

    Participants will receive at 08:00 am a calibrated breakfast of 500kcal. They should not perform physical exercise during the day. They will be asked at 11 a.m. to cycle for 30 minutes at 65% of the maximal capacities and their energy expenditure will be measured by indirect calorimetry. At 11 a.m., teenagers will receive a calibrated meal of 800 kcal respecting the nutritional recommendations for this age. Questionnaires on feelings of hunger will be distributed to them at regular intervals. They will also be asked to complete a 10-minute computer exercise to assess their relationship to food before and after lunch (LFPQ. Leeds Food Preference Questionnaire, Liking/ wanting). Finally, from 60 minutes after the midday test meal, teenagers will have access to an ad libitum buffet for one hour.

  • CONTROLBehavioural

    Teenagers should not perform any physical activity during the day and they will be asked to stay at 11 a.m., for 30 minutes, resting in a semi-supine position.

Study groups in NCT06017440
Study groupRoleWhat they receive
adolescents with obesityExperimentalThere is only one arm as this is an acute randomized study comparing two differents conditions within the same sample of participants.
Receives: Behavioral: EXERCISE; Behavioral: CONTROL

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. APPETITE FEELINGS

    appetite sensation will be assessed using visual analog scales

    Measured: immediately after lunch

  2. FOOD reward

    food reward will be assessed using the leeds food preference questionnaire

    Measured: at lunch time

  3. Energy intake

    energy intake will be assessed ad libitum at the following diner

    Measured: at lunch time

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Aug 2023
  2. Study start1 Jul 2023
  3. Primary completion17 Sep 2023
  4. Study completion17 Oct 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06017440
Sponsor's protocol ID
RBHP 2023 BOIRIE 3
Other IDs
2023-A00808-37
Acronym
SMASH
Status last verified
Aug 2026
First submitted
13 Jun 2023
Last updated
5 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Siroux J, Moore H, Isacco L, Couvert A, Pereira B, Julian V, Duclos M, Miyashita M, Finlayson G, Boirie Y, Thivel D. Acute exercise might not affect subsequent appetite responses to a fixed meal in adolescents with obesity: The SMASH exploratory study. Appetite. 2024 Nov 1;202:107644. doi: 10.1016/j.appet.2024.107644. Epub 2024 Aug 20.

    PubMed 39173841

Questions about this trial

What is this clinical trial studying?

A study testing EXERCISE in people with CONTROL Condition and Exercise, run by University Hospital, Clermont-Ferrand at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

APPETITE FEELINGS (time frame: immediately after lunch). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06017440, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Aug 2026.

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