Validation of a French-version of the Leeds Food Preference Questionnaire in Normal Weight and Patients With Obesity

Study Overview
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Brief Summary
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While Food reward is an important component of the appetite control to consider, there is actually no tool that has been developed in French to perform its evaluation. The Leeds Food Preference Questionnaire (LFPQ) is a validated and recognized tool to assess food reward, being however developed for British populations. The aim of this work is to validate a French version of the LFPQ among lean and obese adults.

Detailed Description
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50 lean and 50 patients with obesity between 20 and 55 years old (50% women and 50% men), will be recruited. After an evaluation of their body composition by impedance meter, and of their dietary status by questionnaires (TFEQ/DEBQ), they will be asked to perform twice the same experimental sessions. They will be asked during this session to arrive at 08:00 am after a 12-hour fast and will receive a calibrated breakfast. Before and after a lunch calibrated meal, they will be asked to perform the French version of the computerized questionnaire LFPQ. Appetite feelings will be assessed at regular intervals.

Official Title
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Validation of a French-version of the Leeds Food Preference Questionnaire in Normal Weight and Patients With Obesity

Conditions
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Normal Weight Adults, Adults With Obesity

Intervention / Treatment
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* Behavioral: Visit 1
* Behavioral: Visit 2


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: BMI between 30 and 38 kg.m² for the obese patients and 20 and 25 for the lean ones. registered to the national social security system Signed consent Exclusion Criteria: eating disorders metabolic disease such as hypertension and Type 2 diabetes

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 55 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: NW (Normal Weight)<br>20 to 55 years old lean adults | Behavioral: Visit 1<br>* the participants will fill in the LFPQ questionnaire before and after a lunch test meal<br>Behavioral: Visit 2<br>* this is a replication of Visit 1, testing the reproducibility of the LFPQ and of its response to a meal.<br>|
| Experimental: OBESE<br>20 to 55 years old adults with obesity | Behavioral: Visit 1<br>* the participants will fill in the LFPQ questionnaire before and after a lunch test meal<br>Behavioral: Visit 2<br>* this is a replication of Visit 1, testing the reproducibility of the LFPQ and of its response to a meal.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Food reward | The participants will be asked to complete the developed French version of the computer-based procedure to measure food reward (Leeds Food Preference Questionnaire; LFPQ) (Finlayson, King et al. 2008). | day 1 , day 8 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Body fat mass | the percentage of body fat and the quantity of fat mass will be assessed using Bio-impedance (BIA) | day 0 | 
| Body fat and fat free mass | the percentage of body fat free and the quantity of fat free mass will be assessed using Bio-impedance (BIA) | day 0 | 
| Dietary status | the level of dietary restriction/disinhibition will be assessed using the TFEQ questionnaire. | day 0 | 
| Dietary status | the level of dietary restriction/disinhibition will be assessed using the DEBQ questionnaire. | day 0 | 
| Hunger | the hunger sensation will be assessed using visual analogue scales of 150 mm. | day 1, day 1 + 30minutes, day 1+60minutes, day 1+ 90minutes , day 8, day 8 + 30minutes, day 8+60minutes, day 8+ 90minutes | 
| Satiety | the Satiety sensation will be assessed using visual analogue scales of 150 mm. | dday 1, day 1 + 30minutes, day 1+60minutes, day 1+ 90minutes , day 8, day 8 + 30minutes, day 8+60minutes, day 8+ 90minutes | 
| desire to eat | the desire to eat sensation will be assessed using visual analogue scales of 150 mm. | day 1, day 1 + 30minutes, day 1+60minutes, day 1+ 90minutes , day 8, day 8 + 30minutes, day 8+60minutes, day 8+ 90minutes | 
| Prospective Food consumption | the Prospective Food consumption sensation will be assessed using visual analogue scales of 150 mm. | day 1, day 1 + 30minutes, day 1+60minutes, day 1+ 90minutes , day 8, day 8 + 30minutes, day 8+60minutes, day 8+ 90minutes | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Appetite, Food Reward, Methodological approach