I vaguely understand the chemical mechanism responsible for charlie horses at the cellular level, but my question is why you can walk around, flex/extend your leg and feet, contract and shorten your calf muscle all day, but if you hit that certain spot or sometimes out of nowhere, your calf will go rogue and seize up on its own and HURT BAD. Isn’t it the same muscle being used?
Or for me, the same happens in my toe. I can point it gently and relax it, but if I point it a certain way, my whole foot will twist up on its own and be extremely painful, not at the joints, but in the muscles I was just using a moment ago *without* pain.
Basically, why *doesn’t* my leg hurt when I use it but when it uses itself, it hurts like hell?
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because it is involuntary and all you can do is wait for it to stop hurting. Chiropractic care of calf muscle cramps/spasms: The most popular explanation of charlie horse calf muscle spasm or cramp is that there is a build up of lactic acid in the muscles due to overuse. Other causes may be dehydration, electrolyte imbalances and malnutrition. Cramp (or ‘Charlie Horse’) referred pain generally occurs in the lower leg, thigh or arm depending on which muscle group has cramped up on you. It can also occur when two opposing muscle groups contract at exactly the same time (such as abdominal and back muscles contracting at once).
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