Many dogs are lacking strength in the core muscle group, the lower back and abdominals. In performance dogs there are many lower and mid-back problems as well as iliopsoas strains. In non-performance dogs the first place we see weakness in aging dogs is usually the hind end and lower back. Working your dog on a Therapy Ball, EggBall, or PhysioRoll is an excellent and safe way to develop these muscles, which will aid in the reduction and prevention of problems. Ball work also improves your dog’s balance and body awareness, increases his range of motion and flexibility, improves hi reflexes, and leads to increased muscle tone and endurance. Ball works can be done in the comfort of your living room regardless of weather. 3 Dics – total run time 2 hrs and 50 min.