Here a synopsis from the site...
"More and more handlers desire a running A-frame. Some worry about the unknown long-term physical effects of stopping dogs on the obstacle. Some feel that their dog's structure or a previous injury makes stopping him unsafe. Others have dogs that clearly indicate they aren't physically comfortable with the behavior being asked for, no matter how hard the handler works on weight shift and motivation. And still others have competitive aspirations and want to perform the obstacle as quickly as possible.If you're planning to train a running A-frame using Rachel Sanders' "box" method, the first thing you'll need is a PVC A-frame box. You can build your own box using 3/4" PVC and 3-way elbow connectors from the hardware store, but if don't feel like searching for parts and cutting your own PVC, you can purchase this kit from Clean Run.
But no matter why you want a running A-frame, there is finally a realistic approach to teaching an accurate and consistent running A-frame to all varieties of dogs."
Click on the links or go through our site - JohannTheDog.com. Don't forget we contribute 10% of our profits to dog rescues and shelters!