Emery dreifuss building muscle?

I don’t think any person with a type of MD can increase muscle size/mass/strength.

Nabbed this from the fact sheet

Can I improve muscle strength?
Regular gentle exercise, which is tolerated without causing stress, is beneficial. But hard physical exercise (weight training for example) should be avoided. It is essential to eat a well balanced diet, to include plenty of roughage and to avoid becoming overweight since this will only overburden the already weakened muscles.