Are physical activity and nutrition linked to personality disorders? Health habits and personality disorders: A scoping review.

Individuals with personality disorders (PDs) have a decreased life expectancy compared with the general population in part due to physical illnesses. Many hypotheses have been suggested to explain those physical illnesses such as hormone imbalance, medication, lack of physical activity, and unhealthy diet. However, little is known about the relation between lifestyle and PDs. The purpose of this scoping review is to regroup the available information on this topic. We searched the literature up to February 2021 using four databases and found 21 articles analyzing the relation between lifestyle and PDs in observational studies including 153,081 participants from diverse populations going from general population to adults in psychiatric care. Most studies used measures of lifestyle as control variables or did not use lifestyle variables at all. Moreover, the instruments used to measure lifestyle variables lacked precision at best. Two studies demonstrated a relation between early malnutrition and further development of PDs, but those results may be influenced by confounding variables and cannot indicate a clear link between nutrition and personality disorder. The lack of solid evidence we observed is surprising, considering the multiple benefits individuals with PDs could get from a healthy lifestyle. More studies are needed to thoroughly analyze the impact of lifestyle on PDs and vice versa.

Acute Effect of Physical Exercise on Negative Affect in Borderline Personality Disorder: A Pilot Study.

Background: Physical exercise is an evidence-based treatment to reduce symptoms and negative affect in several psychiatric disorders, including depressive, anxiety, and psychotic disorders. However, the effect of physical exercise on negative affect in patients with borderline personality disorder (BPD) has not yet been investigated. In this pilot study, we tested the safety, acceptability, and potential acute effects on negative affect of a single session of aerobic physical exercise in adults with BPD. Method: After completing a negative mood induction procedure, 28 adults with BPD were randomly assigned to a 20-minute single session of stationary bicycle or a control condition (emotionally neutral video). Results: No adverse effects attributed to the physical exercise were reported and it was considered acceptable to patients. Following the negative mood induction, both conditions decreased the level of negative affect with a medium effect size but there was no significant difference between them. Conclusion: The results suggest that a single 20-minute session of physical exercise does not produce a reduction of negative affect in BPD. Future research should consider the duration and intensities of physical exercise with the greatest potential to reduce negative affect both acutely and in a more prolonged manner in this patient group.

[Physical activity, sleep, and substance use in adults reporting a borderline personality disorder in France and Canada: An online study]. / Activité physique, sommeil et consommation de substances chez les adultes déclarant un trouble de personnalité limite en France et au Canada : une étude en ligne.

Introduction Borderline personality disorder (BPD) is associated with many unhealthy behaviors. Psychoactive substance (alcohol and drugs) use is present in 78% of adults with BPD. Moreover, a poor sleep seems linked to the clinical profile of adults with BPD. Finally, some physical comorbid disorders like obesity, cardiovascular diseases, and diabetes are linked to physical inactivity and sedentary behaviors. However, to this day no study analyzed these behaviors in French-speaking individuals with BPD. Objectives This study's goal is to document health behaviors in adults with BPD in Canada and in France. Method This cross-sectional study consists of an online survey on the LimeSurvey platform including validated questionnaires distributed in France and Canada. To measure physical activity, we used the "Global Physical Activity Questionnaire." Insomnia was measured with the "Insomnia Severity Index." Substance use was measured with the "Alcohol, Smoking and Substance Involvement Test." Descriptive statistics (N,% and mean) are used to describe previously mentioned health behaviors. Five regression models have been realized to find the main associated variables (age, perceived social status, education level, household income, body mass index, emotional regulation difficulties, BPD symptoms, depression level, previous suicide attempts and psychotropic medication use) to health behaviors. Results A total of 167 participants (92 Canadians, 75 French; 146 women, 21 men) filled out the online survey. In this sample, 38% of Canadians and 28% of French reported doing less than 150 minutes of physical activity weekly. Insomnia affected 42% of Canadians and 49% of French. Tobacco use disorder affected 50% of Canadians and 60% of French. Alcohol use disorder affected 36% of Canadians and 53% of French. Cannabis use disorder affected 36% of Canadians and 38% of French. All tested variables were linked to physical activity (R² = 0.09). Insomnia was only linked with BPD symptoms (R² = 0.24). Tobacco use disorder was linked to social status and alcohol use disorder (R² = 0.13). Alcohol use disorder was linked to social status, body mass index, tobacco use disorder, and depression (R² = 0.16). Finally, cannabis use disorder was linked to age, body mass index, tobacco use disorder, depression, and past suicide attempts (R² = 0.26). Conclusion These results are essential to design health prevention interventions in French-speaking adults with BPD in Canada and in France. They help identify the main factors associated with these health behaviors.

Motivational theory-based interventions on health of people with several mental illness: A systematic review and meta-analysis.

Motivational theory-based interventions are known to be effective for increasing physical activity (PA) in the general population but their effects in people with severe mental illness are poorly understood. Therefore, we conducted a meta-analysis on the effect of these interventions on PA and cardiometabolic risk factors. A systematic search of randomized controlled trials through 6 databases was carried out from inception to March 2019. Analyses were conducted using random-effect models. Weighted mean difference (WMD) were used as effect size when outcomes had the same units, otherwise Hedge's g was used. Fourteen articles including 2128 participants were identified. Motivational theory-based interventions were effective in increasing PA (g = 0.27, 95%CI[0.03; 0.51], p = .003), reducing weight (WMD = -1.87 kg, 95%CI[-2.98; -0.76], p = .001), body mass index (WMD = -0.82 kg/m2, 95%CI[-1.23; -0.41], p = .009), waist circumference (WMD = -1.91 cm, 95%CI[-3.63; -0.18], p = .03) and fasting glucose (g = -0.17, 95%CI[-0.34; -0.001], p = .04). Larger effect sizes were found in interventions based on only one theoretical model of motivation. In conclusion, interventions using motivational theories are effective to improve PA levels and the cardiometabolic health profile of people with severe mental illness. Systematic review registration: CRD42018104445.