The first thing to ponder is if this is medical. If your dog is in pain they will not perform well. We would recommend contacting your veterinarian and they may want to perform X-Rays to see exactly what might be going on and what the bones are doing. From there, depending on what the issue is, they may refer you to a Orthopedic Doctor, Canine Physical Therapist or Neurologist. Glucosamine for joints can help keep them healthy but will not help if it is a more severe medical or neurological issue.
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