More factors that contribute to muscle cramps
Previously I discussed how dehydration & lack of sodium or potassium may cause muscle cramps. I now want to explore other nutritional factors.
Calcium
Calcium plays an essential role in muscle contractions. Some active people report their problem with cramping disappears when they boost their calcium intake. This anecdotal evidence is disputed by scientists who state that when dietary deficiencies of of calcium occur, calcium is released from the bones to provide what the body needs for proper muscle contraction. If you are plagued by muscle cramps, it may be worth trying to increase your intake of dairy or other calcium rich foods to see if it helps.
Magnesium
Just as muscles need calcium to contract they need magnesium to relax. Roffe et al demonstrated that magnesium helps reduce leg cramps that occur in the middle of the night.
Reference
Roffe C1, Sills S, Crome P, Jones P (2002), Randomised, cross-over, placebo controlled trial of magnesium citrate in the treatment of chronic persistent leg cramps. Med Sci Monit. 2002 May;8(5): p326-30.
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How to prevent muscle cramps?
I know previously I have discussed how to minimise the risk factors associate with muscle cramps including during pregnancy. Exercise Related Muscle Cramps May occur during, after or in some case many hours after vigorous activity. In addition to minimising the risk factors I have previously documented you need to ensure you
- Don't exercise when injured - cramps can occur as a protective mechanism following an injury.
- Warm up thoroughly
- Stretch before and after exercise
- Cool down properly
- Don't over do it - their is a clear correlation between muscle fatigue and cramps. In addition if you suddenly place a huge physical demand on the body (e.g. a late spurt to win the race) that it is not used to, your body can react by contracting all the muscle and creating cramps. So remember to follow a suitable training program before entering that competition!
- Stand about 2 or 2.5 feet away from a wall. Lean into the wall to place the forearms against the wall with the knees and back straight and the heels in contact with the floor. Hold for 10 to 15 seconds and repeat three times before going to bed.
- In bed while lying down, you can try flexing the ankle by pulling the toes up toward the head with the leg as straight as possible.


