Leg Cramps: Their Cause and Prevention
©Copyright 2012 by Robert Chuckrow
Years ago, I would occasionally get excruciating nocturnal leg cramps, I would awaken to find my calf muscle totally contracted and as hard as a rock. After the cramp subsided, my calf muscle was sore for days afterward. Once I attained an understanding of the cause and prevention of leg cramps, I haven’t had such a cramp for well over a decade.
Causes of Leg Cramps. There are a number of causes of leg cramps. The factors that will be discussed here are food, temperature, and overuse of muscles. Muscular contraction is initiated by nerves. These nerves can spontaneously send impulses to muscle fibers to contract when they become irritated by toxins. Cramps can also occur from an overabundance of acid elements (phosphorus, sulfur, chlorine, and nitrogen) and an insufficiency of alkaline elements (potassium, calcium, and especially magnesium). When the muscle fibers contract, they restrict the flow of blood, resulting in an increase in toxins and acid elements and an even greater insufficiency of alkaline elements. Thus, a vicious cycle begins, resulting in a cramp. The reason that such cramps are more likely to occur during sleep is that circulation is reduced, exacerbating the effect of the factors mentioned. Once the cramp has begun, movement (by walking around) and stretching help.
The following considerations should be useful in avoiding leg cramps:
Acid-Alkaline Balance. The balance of acid and alkaline elements in the body is important not only for muscles but also for the immune system and the retention of bone tissue. The ideal dietary intake involves a ratio of four times as much alkaline as acid. The alkaline elements abound in fruits and green vegetables, and the acid elements predominate in meat, eggs, white flour, white rice, beans, and peanuts, all of which contain protein (nitrogen) and have little alkaline elements. Read more about acid-alkaline balance. One part of the solution is definitely avoiding acid foods in the evening—especially large amounts of high-protein foods. Some people find that even drinking carbonated beverages near bedtime can also cause leg cramps. Carbon dioxide (CO2), a consituent of carbonated beverages, forms an acid, carbonic acid, in the bloodstream. Even though CO2 is normally eliminated by the lungs relativiely quickly, during sleep that elimination may be delayed.
Micro Essential Labratory sells Hydrion 067 test strips that are used to accurately test the acidity/alkalinity of one’s urine in the range of 5.5–8.0 pH. Such test strips are quite useful in obtaining feedback on the effects of foods on the body’s pH.
Multi-Mineral Supplements. Most multi-vitamin supplements have little or no minerals in themSome experts recommend taking a multi-mineral supplement just before retiring for reasons having nothing to do with leg cramps, but since I started this practice, my leg cramps have been completely gone. The list of ingredients below is from the supplement that I take. Beware of supplements that are unbalanced or are missing trace minerals. Note that unless an iron deficiency is known to exist, women past menopause and men should avoid supplements containing iron.
A list of ingredients typical of a multi-mineral supplement that is balanced and contains a good number of trace elements.
Temperature. I notice that, while I am asleep, the region from my hip joints down to my feet becomes somewhat cooler than the trunk of my body. I have found that simply having an extra blanket over the lower part of my body reduces the chance of a leg cramp.
Acting Quickly. Over the years that I suffered from leg cramps, I developed the ability to feel a cramp starting even while asleep and to immediately extend the heel of that foot. Doing so would sometimes prevent a cramp—or at least reduce its severity. Of course, addressing the causes of leg cramps makes such action unnecessary.
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