26/10/2025
Jake is one of our visitors who comes to the park on his wheels.
At 11, Jake has degenerative myelopathy which means the messages that get sent along his nerves to move his back legs don't work quite as quickly so he can't always use his back legs.
Myelin is like a protective cover that protects nerves, allowing electrical signals to travel up and down the nerves from the brain, to tell your arms and legs and so on what to do.
When you train your dog to do something, repetition means that myelin gets thicker around the nerve that's learning the new trick. When it gets thicker, the electrical signal that sends when your dog practices the new tri k gets faster, and so your dog does their trick better and faster.
But when that myelin degenerates with age, particularly in some breeds like German Shepherds on their back legs, it means those signals are slower or sometimes don't send, which can result in them dragging their feet or falling over.
It's such a sad disease, but wonderful that Jake is still enjoying life so much and gets to chase round his younger sister.