A new peer-reviewed study has examined how changing the distance between a jump and the A-frame obstacle affects the dynamics of agility dogs during competition. The research, The effects of altered distances between A-frame and the preceding jump on front limb dynamics in agility dogs, is now available open access in The Veterinary Journal. The study was led by Claire Bidwell, Scott Blake, and Roberta Blake, with assistance from Dr David Marlin, who supported the team in the methodology and review phases.
The A-frame is one of the most injury-associated obstacles in dog agility, yet little is known about how dogs’ approach to this obstacle might affect their risk of injury. The study investigated the impact of placing a jump at three different distances (5 m, 7.5 m, and 10 m) ahead of the A-frame on key biomechanical factors: approach velocity, acceleration, deceleration, peak vertical force (PVF), and carpal hyperextension.
Key findings:
- As the distance between the jump and A-frame increased, so did the dogs’ approach speed, acceleration, and deceleration.
- Despite these changes in speed, the forces on the dogs’ limbs when contacting the A-frame (PVF and carpal extension) remained consistent across all distances.
- This suggests dogs are adept at regulating their speed before contacting the A-frame, likely through a combination of physical control and learned behaviour.
- A shorter distance (5 m) between the jump and A-frame reduced approach speed and braking demands, potentially lowering the risk of injury due to high deceleration forces.
While the contact forces on the A-frame remained stable, the study highlights that high deceleration, particularly at greater distances, may place considerable load on the forelimbs, possibly contributing to shoulder and wrist injuries.
This research provides valuable insight into agility course design and suggests that placing the preceding obstacle closer to the A-frame may help reduce injury risk. It opens the door for further studies that could inform future competition guidelines and promote safer agility practices.
