Your muscles move when nerve signals from the brain tell them to get to work. Electromyography (EMG), a diagnostic test, measures how well your muscles respond to those signals. Movement is a complex ...

There are no specific tests to diagnose amyotrophic lateral sclerosis (ALS). To make a diagnosis, a doctor will perform tests to rule out other conditions with similar symptoms and indicate changes ...

Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease affecting the nerve cells in the brain. An ALS diagnosis usually involves various tests, including testing the nerves, ...