02/12/2026
Does Shoeing Method Matter? Inside the Horseβs Physiological Response
Heart rate variability (HRV) reflects how the autonomic nervous system responds to stimuli and stress in horses. This study compared HRV in horses undergoing cold (n=25) and hot (n=26) shoeing. Researchers measured time, frequency, and HRV variables before, during, and for two hours after shoeing.
Several HRV measures changed depending on whether the horse was hot or cold shod, and also on when the measurements were taken. Increases in these indicators were seen 30 minutes after hot shoeing, suggesting greater autonomic (sympathovagal) activity than in cold-shoed horses.
These findings show that shoeing method influences cardiovascular responses, with hot shoeing producing stronger physiological activation compared to cold shoeing. However, since behavioural data were not collected and shoeing duration varied between horses, these results should be interpreted cautiously and confirmed under more controlled conditions.
Read this paper here: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0305031