The study was conducted in accordance with the Declaration of Helsinki, and approved by the Institutional Review Board of the UNIVERSITY OF KENTUCKY (Ethics number 2019-3150; 15th October 2019) and the Ethics Committee of the UNIVERSITY OF CEN-TRAL LANCASHIRE (STEMH 961; 6th February 2019). Written informed consent was provided by the riders prior to commencing the study. Written informed consent was obtained from the owner of the animals (or an authorized agent for the owner). Templates are available on request.