Dog-Assisted Interventions Reduce Salivary Cortisol in Ukrainian Military Personnel with Post-Traumatic Stress Disorder (PTSD): A Pilot Study

Although recent studies report elevated rates of post-traumatic stress disorder (PTSD) among Ukrainian refugees, data from military hospitals and rehabilitation centers within Ukraine remain scarce. Numerous studies have described that interactions with therapy dogs help mitigate PTSD symptoms by providing emotional support, reducing hypervigilance, encouraging social engagement, and facilitating physiological de-arousal. However, the potential role of dog-assisted interventions (DAIs) in therapeutic settings during ongoing conflict has not yet been investigated. In this study, saliva samples pre- and post- a 20 min DAI were gathered from soldiers and other military service personnel with diagnosed PTSD in Kyiv, Ukraine. Salivary cortisol was assessed as a biomarker to parallel acute physiological strain. The findings revealed a decrease in salivary cortisol from pre- to post-DAIs in both men and women. Of note, men exhibited higher salivary cortisol levels than women both pre- and post-DAIs. The present findings suggest that people with PTSD benefit from canine support due to reduced acute arousal in a war environment. Limitations include the small sample size and the lack of a control group. In order to mitigate against the high prevalence of psychophysiological distress in at-risk populations such as military personnel, further research is warranted.