What is the difference between neurologic muscle weakness and metabolic muscular weakness?

Different cells hit. Neurologic muscle weakness is due to any disorder of the nerves activating muscles that causes weakness. Metabolic muscle weaknees is due to a disorder, usually of the muscle cells themselves, that leads to incomplete/inappropriate use of "fuel" conversion into energy by the muscle cells.

Related Questions

Need advice on what is the the difference between neurological muscle weakness and metabolic muscular weakness?

Neuro vs. Metabolic. These two symptoms can overlap in some ways but generally speaking neurologic muscle weakness will effect a group of muscles controlled by those nerves. A common stroke in the cerebral hemisphere is a good example, weakness occurs on 1/2 of the body. Metabolic weakness should effect all of the muscles in your body. Read more...

What is the difference between having muscle soreness and muscle weakness?

Pain. If a muscle is sore, that means it has pain when it is touched or when you move it. If it is weak, that means it is hard to use it because it doesn't have much strength. You might feel as if you are weak if a muscle hurts when you use it so you don't want to use it. But if you really had to use it (like to save your child) you could do that. Read more...

Could there be a difference between muscle fatigue and muscle weakness?

Not really. Muscle weakness refers to the actual strength of a muscle. You improve weakness with specific exercises to hypertrophy the muscle. Muscle fatigue refers more to the endurance of a muscle. The weaker a muscle is, the earlier it will fatigue. It's really a matter of splitting hairs in definition. Read more...

How does muscle weakness from glucocorticoids differ from that from vita d deficiency and that from serotonin toxicity?

Weakness. Weakness is weakness no matter the cause. That said, steroids can in some instances cause weakness via damage to type 2 muscle fibers (those that produce power). Vit d def also causes atrophy of type 2 muscle fibers which tends to be more reversible (with vit d replacement). Serotonin toxicity causes uncontrolled muscle spasms which, if severe, can cause severe muscle breakdown (type 1 & 2 fibers). Read more...

What techniques could be used to determine the cause of severe muscle weakness after only mild exercise?

Many. The workup would start with metabolic tests, thyroid function tests, serum chemistries, blood counts, and could progress to electromyograms, nerve conduction tests, and also muscle biopsy. Read more...

I have very low d and low b12. Was prescribed weekly B12 shots, and 50000iu d4 per week. How long before my numbess/ muscle weakness symptoms subside?

STOP D4(?)! Take D3. I've never heard of d4 in the 50000iu form-are you sure it's not d2? In either case you shouldn't take d4 or d2-no doc should prescribe d2 (please show this to your doc: http://bit.Ly/1hc250m). Also see http://bit.Ly/1ekkvkv ; http://bit.Ly/1gnxnk0 adults with very low d should take d3 10, 000 iu/day until it normalizes, which can take many weeks. It can take months for nerves to heal after this. Read more...