Question

how do ramp occur n our muscle​

Answer 1

Answer:    

The ramp effect of muscle contraction. The graph shows that progressively greater and greater numbers of muscle fibers are recruited as athletes swim faster. Slow twitch are the first fibers to be recruited. FTa fibers are added to the effort as speed increases. FTx are the last fibers to be recruited and this occurs when speeds are near maximum

Answer 2

Answer:

A muscle cramp is a sudden and involuntary contraction of one or more of your muscles. If you've ever been awakened in the night or stopped in your tracks by a sudden charley horse, you know that muscle cramps can cause severe pain. Though generally harmless, muscle cramps can make it temporarily impossible to use the affected muscle.

Explanation:

Muscle cramps usually disappear on their own and are rarely serious enough to require medical care. However, see your doctor if your cramps:

Cause severe discomfort

• Are associated with leg swelling, redness or skin changes
• Are associated with muscle weakness
• Happen frequently
• Don't improve with self-care
• Aren't associated with an obvious cause, such as strenuous exercise

Causes

Overuse of a muscle, dehydration, muscle strain or simply holding a position for a prolonged period can cause a muscle cramp. In many cases, however, the cause isn't known.

Although most muscle cramps are harmless, some may be related to an underlying medical condition, such as:

• Inadequate blood supply. Narrowing of the arteries that deliver blood to your legs (arteriosclerosis of the extremities) can produce cramp-like pain in your legs and feet while you're exercising. These cramps usually go away soon after you stop exercising.
• Nerve compression. Compression of nerves in your spine (lumbar stenosis) also can produce cramp-like pain in your legs. The pain usually worsens the longer you walk. Walking in a slightly flexed position — such as you would use when pushing a shopping cart ahead of you — may improve or delay the onset of your symptoms.
• Mineral depletion. Too little potassium, calcium or magnesium in your diet can contribute to leg cramps. Diuretics — medications often prescribed for high blood pressure — also can deplete these minerals.