Effects of high intensity interval training among overweight individuals with psychotic disorders: A randomized controlled trial.

Physical activity has been suggested to reduce the high prevalence of metabolic complications in individuals with psychosis. Although high intensity interval training (HIIT) is efficacious in other populations, it remains poorly studied in psychosis. METHODS: Randomized controlled study comparing the effects of 6 months HIIT supervised program (30-minute treadmill sessions twice a week) to usual-care waiting-list control group. Anthropometric (primary outcome: waist circumference), body composition, blood profile, blood pressure, psychiatric symptoms and global functioning were measured at baseline and 6 months. RESULTS: Sixty-six individuals with psychosis (62% men; 30.7 ±â€¯7.2 years old; mean BMI: 32.7 ±â€¯5.7 kg/m2) were randomly assigned to either HIIT (n = 38) or control group (n = 28). Mean attendance rate to HIIT sessions was 64%, although 50% dropped-out the intervention before the end. Few minor adverse events were reported. The intent to treat analysis showed no impact of HIIT on waist circumference (p = 0.25). However, in a post-hoc analysis among the compliant participants (>64% of prescribed sessions), significant improvements in waist circumference (-2.94, SE = 1.41, p = 0.04), negative symptoms (PANSS negative -3.7, SE = 1.39; p = 0.01), social (SOFAS +6.16, SE = 1.76, p = 0.001) and global functioning (GAF +5.38, SE = 2.28, p = 0.02) were observed. DISCUSSION: HIIT seems to be safe and well accepted in overweight individuals with psychosis. Exercise compliance to HIIT is associated with improvements in waist circumference as well as negative symptoms and functioning. Interventions improving attendance are needed.

[Suicide and nutrition: a bio-psychosocial approach]. / Suicide et alimentation : approche biopsychosociale.

This article proposes a new bio-psychosocial perspective on the links between mental health, more specifically suicide, and nutrition. We first discuss the links between nutrition, its social role and suicide. The act of eating is studied as a social integrator and regulator, in the light of Durkheim's theorization. Nutrition is also examined as self-destruction, with particular cases of "diet-related suicide." De-structuring of meals and alienating foods are identified as contributing factors to the de-structuring of "nutrition models." We then discuss the place of food within the psychopathology, and finally, the links between biological parameters reflected in food and suicide risk. Avenues of research and intervention along this bio-psychosocial approach are also proposed.

[Suicidality and musical preferences: a possible link?]. / Risque suicidaire et préférences musicales : y a-t-il un lien ?

Music is an important part of young people's lives. In this article, we attempt to answer two questions on the links between music et suicide. First, we examine if certain types of music favor suicidal process (ideation and acting out); and, secondly, we examine if music can constitute a tool to reduce the risk of suicide. Several factors possibly involved in links between musical preferences and the suicidal process are developed: the Velten effect and the musical mood induction procedure, the identification and the learning by imitation, the media influence as well as the individual characteristics. A multifactor approach is necessary to understand the complex and birectional links that unite musical preferences and suicide risk.