The decremental response follows repetitive nerve stimulation (RNS) completed earlier in proximal muscles compared with distal muscles in a study of patients with myasthenia gravis (MG) and ...

Background Hamstring muscle injuries are notoriously found among the most common causes of abstinence and delayed return to sport, in a variety of track, field and other high level athletes. In this ...

A 30-year-old African-American woman presented to the emergency department for medical assessment after becoming too weak to walk. She reported proximal muscle aches in both arms and legs, a skin rash ...

Background: Hamstring injuries are common especially in athletes. Partial and complete tears of the proximal origin may cause pain and functional loss. Objective: To evaluate the results of surgical ...

Because myasthenia gravis weakens your muscles so you tire easily, you may wonder if exercise is a smart idea. It’s possible for physical activity to make symptoms worse, but it’s still in your best ...

In this Journal feature, information about a real patient is presented in stages (boldface type) to an expert clinician, who responds to the information by sharing relevant background and reasoning ...

Q: I started to develop weakness that made it hard for me to get out of a chair. My doctor thinks it may be polymyositis and referred me to a specialist. What is this disease? A: Polymyositis (PM) is ...

Spinal muscular atrophy (SMA) is a genetic condition in which the anterior horn motor neurons, as well as other lower motor neurons in the brain stem nuclei, degenerate due to mutations in the ...