The influence of fence height on joint angles of agility dogs

Unlike equestrian sports, dog agility jump heights are predetermined by the dog’s body height. Consequently, in UK Kennel Club competitions dogs 430mm high jump 7% lower than their body height whereas dogs 431mm high jump 51% higher than their body height; no research has yet been undertaken on the resultant kinematics. Seven agility dogs of similar type and bodyweight to height ratio were recorded jumping fences 7% lower, and 51% higher than their body height. Joint angles, measured from anatomical markers using Dartfish, were analysed using Wilcoxon’s test. Significant extension at the base of the neck during approach and take-off (P<0.05), significant hock and sacroiliac extension at take-off (P<0.05) and greater scapulohumeral and elbow joint flexion during take-off and peak of bascule (P<0.05) were observed during the higher jump No significant differences were observed on landing or get-away. These findings relate to previous reports of injury sites in agility dogs.