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Clinical Trial Summary

The purpose of this study is to check if patients, but also relatives (as they share familial and genetic risk factors), are having more difficulties in regulating a spontaneous, pleasant physical effort (doing "too much") compared to healthy controls, and if physical efforts are participating to core symptoms of anorexia nervosa, such as more appetite (instead of less), less pain, more abnormal body image, and less cognitive flexibility.

Such a result could help to further understand the role of difficulties with physical exercise as part of the phenotype of anorexia nervosa.


Clinical Trial Description

This is a three steps protocol. First, patients (with anorexia nervosa), controls (with no eating disorder) and first degree relatives (with no eating disorder) will be tested for emotional accuracy (seing faces on a screen with different core emotions), pain threshold (how long they can support a cold probe), body size (how they see themselves), appetite and cognitive flexibility (a test where the capacity to change rules during a game is done easily or not).

Then all subjects will do a standardized physical exercise which represents an effort with the equivalent level of energy for each participants as being chosen according to each level of competency (assessed through the "maximal aerobic power").

The third step consists in the repetition of (nearly) initial tests. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02995226
Study type Interventional
Source Centre Hospitalier St Anne
Contact Philip GORWOOD, MD, PhD
Phone 00 33 45 65 86 39
Email [email protected]
Status Recruiting
Phase N/A
Start date February 27, 2017
Completion date September 2020

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