I contacted the person who owns the kittens and posted the video of them after being alerted about it through a UK Muscular Dystrophy forum.
Ed didn't know that people also suffered from MC and was shocked to hear it. The Royal Veterinary College refer to animal cases of MC as 'Fainting Goat Syndrome', I e-mailed the Principal of the college asking him to direct his staff not to use that term as MC was first diagnosed in humans and the rules of scientific precedence should be regarded but he's not responded as yet. I've decided to write a formal letter instead.
Sadly both the kittens are now dead. Ed, their owner, e-mailed me with the news recently.
My two male brother cats were diagnosed with MC around 6 months. They are now almost a year. I also emailed the person who posted that youtube video. I am working with my vet to see if there are any possible drugs that would be safe and effective for my cats. Please let me know if you have any information.