grigua ha scritto:Avevo letto che un rimedio veloce alla comparsa del crampo è quello di mettere del sale fino sotto la lingua....non l'ho ancora provato.
Recettori TRP (Transient Receptor Potential).
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TRP channels are found in the oral cavity and connect the mouth to the central nervous system. Ther is some evidence that stimulating these receptors somehow causes a ‘jolt’ reaction down the nerves, disrupting the signals that are causing a cramp. Substances that stimulate TRP channels are things like wasabi, mustard oil and ginger (possibly also the salted milk being administered to workers on the Hoover Dam was having a similar effect).
There is a great deal of evidence from USA, where pickle juice is consumed during trail and ultra running events, that this can have an inhibitory effect on cramping. Pickle juice contains acetic acid and it would seem to be this, rather than the high levels of sodium, that stimulates the TRP receptors and helps relieve cramps. This is consistent with the muscle fatigue theory that postulates the root cause of cramping is to be found in the nervous system.
It is not known whether the ingestion of a TRP stimulator can prevent the onset of cramps but there is a growing body of both anecdotal and scientific (*9) (*10) material pointing in this direction (though a placebo effect may be involved). In this case the author would suggest that a more easily carried and more palatable solution may be found in ginger (dried or candied).