Is physical activity related to a reduction in the severity of borderline personality disorder through less severe insomnia disorder?

IntroductionBorderline personality disorder (BPD) is associated with severe suffering and insomnia disorder (ID) (Fertuck et al., 2016; Galbiati et al., 2020).ObjectivesThe aim was to investigate the negative association between self-reported physical activity (PA) and the severity of BPD with ID acting as a mediator (St-Amour et al., 2021).MethodsThe role of ID within the association of PA with BPD was tested using mediation analysis with the statistical program R 4.3 (N = 120; RStudio Team, 2020).ResultsTable 1Mediation analysis resultsβsetpLLCIULCIEffect a0.070.051.460.15-0.030.17Effect b0.410.094.60< 0.0010.230.59Effect c0.110.052.160.030.010.21Effect c’0.080.051.700.09-0.010.17Note: β = beta coefficients; se = standard error; t = t-value; p = p-value; LLCI = lower limit confidence interval; ULCI = upper limit confidence interval. Effect c’: The association within the mediation analysis is not significant (β = 0.08, se = 0.05, p = 0.09). Effect a: PA is not significantly associated with ID (β = 0.07, se = 0.05, p = 0.15). Effect b and c: ID (β = 0.41, se = 0.09, p < 0.001) and PA (β = 0.11, se = 0.05, p = 0.03) are significantly associated with the severity of BPD.Image:ConclusionsAccordingly, ID does not appear to affect the association of PA and BPD severity whereas fewer PA and severe ID can nonetheless have a positive association with the symptoms of BPD in independent ways.Disclosure of InterestNone Declared