Also, I have not been able to find any truly convincing studies on the Thundershirt. The only ones I could find were sponsored by the Thundershirt company. This one looks somewhat interesting and talks about a hide-box and measuring cortisol levels and heart rate, but I was not able to find the actual Journal publication that they alluded to in the article.
Combine the “stand” with other commands. There are many ways to combine commands. After getting your dog to "stand," you might add a “wait” or “stay” command if you want the dog to stand for longer periods of time. You can also follow with a "sit" or "down" to do some “doggy drills,” and gradually increase the distance between you and the dog. Eventually, you'll have your dog performing these commands from across the room.
Profound fear and withdrawal of unknown cause (so called idiopathic fear and withdrawal) has also been noted in certain dog breeds, including the Siberian Husky, German Shorthaired Pointer, Greyhound, Chesapeake Bay Retriever, Bernese Mountain Dog, Great Pyrenees, Border Collie, and Standard Poodle, among others. There appears to be a strong familial component, with the likelihood of a genetic influence.
Clicker training, a common form of positive reinforcement, is a simple and effective dog training method. Although it is still fine to train your dog without clicker training, many people find it helpful. With clicker training, you can easily and effectively teach your dog all kinds of basic and advanced commands and tricks. It's fast and easy to learn how to clicker train your dog