Mama Cheryl
Active member
- Joined
- Jan 31, 2020
- Messages
- 44
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- Country
- US
- State
- CA
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- Mission Hills
i apologize Laurie but no one said which came first weakness or atrophy.We have answered the atrophy / weakness question many times. They generally come in close proximity depending on the type of ALS and the muscles involved, with weakness preceding atrophy. There is no set time interval as people vary in how muscular they are at the beginning, what physical activities they do, how well some muscles can compensate for others, etc. The real clue to know something is up, is functional limitations, not how much atrophy there is or exactly when it starts. But even then, most limitations are not due to ALS.
The EMG/NCS is designed to identify any abnormalities in motor and sensory nerves, problems with the nerve-to-muscle signals that make muscles move, and problems with the muscles themselves. It looks for many things besides ALS.
I know what the EMG looks for my question was how long are they good for? Thank you