At the age of 8–15 years, youngsters with DMD have a sensation of locking of the knees. These can usually be the main symptom with ache, and can lead to stress sores, ulcers and neuropathic (Charcot's) joints. When muscle tissue are weak, the joint is unstable and the limb floppy and flail; that is balanced paralysis. Unbalanced paralysis occurs when one group of muscles is relatively... https://progorki.com/