This may be due to direct trauma (falling on your butt), overuse, or a sudden, forced rotation of the hip, which may occur when running on an uneven surface. The inflamed muscle may cause pain in the center of the buttock or may compress the sciatic nerve causing pain, aching or tingling in the leg. Pain may be increased by sitting, climbing stairs, or squatting. Deep palpation of the center of the buttocks will cause pain, as will sudden stretches of these muscles. Initially you can run through the pain, but in many cases, symptoms become severe enough to restrict activity. The muscle tightens and may even spasm during activities, which can cause an alteration in gait.
The female Australian shepherd is usually about 18-21 inches at the shoulders and weighs between 35-50 pounds. The male Australian shepherds are a bit bigger than the female. In fact, the average height of the male is around 20-23 inches at the shoulders, and weighs between 50-65 pounds. Besides the obvious differences between the male and female, there are many other things that are different.
A Miniature American Shepherd is a Mini Australian Shepherd that has been registered with AKC or UKC. The only difference is where the dog is registered. The Australian Shepherd and the Miniature American Shepherd are genetically inseperatable. The Miniature American Shepherd is a small Australian Shepherd. The Australian Shepherd stands 18-23 inches tall at the shoulder and the Miniature American Shepherd stands 13-18 inches tall at the shoulder. They have the same look, working style, intelligence, energy level, personality, grooming requirements, etc.