Study Reveals Synchronization of Heart Rates in Equine Therapy

Recent research has confirmed that the heart rates of humans and horses can synchronize during equine-assisted therapy, reflecting a profound connection between the two. This phenomenon, previously observed in various human interactions, has now been documented in therapeutic settings involving horses, according to a collaborative study conducted by researchers from Switzerland and Austria.

The study, published in the journal Complementary Therapies in Clinical Practice, highlights the potential of horse therapy as a complementary treatment for individuals with intellectual disabilities. While the benefits of horse therapy in improving motor skills have been well-established, the psychological effects and the mechanisms behind them remain less understood. The research team, which includes experts from the Lichtblickhof children's hospice and therapy center in Vienna and the Messerli Research Institute at the University of Veterinary Medicine in Vienna, aims to shed light on these aspects.

In this pilot study, researchers measured physiological responses related to stress, including heart rate and cortisol levels, among young adults with intellectual disabilities, their therapists, and the therapy horses. Measurements were taken before, during, and after structured therapy sessions. The findings revealed that the heart rates of clients and horses adapted to each other, achieving synchronization under specific conditions. A key factor for this synchronization was the quality of the relationship between the participants. Heart rhythm alignment occurred primarily when clients interacted with their preferred horses.

Moreover, the study found that the bond between therapists and their horses also influenced the synchronization effect. When therapists interacted with horses they had a strong bond with, the alignment of heart rates was more pronounced. This suggests that the emotional connections established in therapy play a vital role in enhancing its effectiveness.

The study further indicated that equine therapy significantly reduced stress levels in participants. After engaging with the horses, the young adults exhibited lower cortisol levels and a decreased heart rate, both indicators of relaxation. Additionally, their heart rate variability (HRV) increased, which is a sign of the body's ability to adapt to stress and is associated with overall well-being. The presence of horses during challenging tasks also correlated with a notably lower heart rate compared to when subjects faced challenges without equine support.

These findings align with anecdotal evidence from practitioners in the field, who have long observed the positive impact of horses on well-being, stress reduction, and relaxation. The study aims to provide scientific validation for these experiences and foster greater acceptance of equine-assisted therapy. By highlighting the importance of relational dynamics in therapeutic settings, the researchers hope to improve the frameworks that support horse therapy practices.

For further details, the full publication can be accessed [here](https://doi.org/10.1016/j.ctcp.2025.101937). For more information about the Lichtblickhof center, visit [lichtblickhof.at](https://lichtblickhof.at/).