There are a few possibilities one is Muscular Dystrophy. This is usually a progressive condition and they show progressive weakness as well as atrophy on the limbs. It should be mentioned to your vet and the only reliable way of diagnosis is through a muscle biopsy.<br /><br />I would also recommend an exam with your vet to determine as well if there are any problems such as Patellar luxation or a stretched or torn anterior cruciate ligament. Again, your vet should easily ascertain these.<br /><br />If you are interested in homeopathy here is a suggested book: “
Homeopathy Beyond Flat Earth Medicine” <br /><br /><br />Others suggest increase any vitaminC preferably Calcium ascorbate, and begin a glucosamine product available at better pet health stores. Of course check with your veterinarian before doing any of this.