Is it "normal" to get a severe thigh cramp when you are doing situps? What would cause it? What causes leg crams anyway?
by 
RosieGHM Jetpacker
ANSWERS: 1
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I haven't actually gotten a bad cramp from abdominal exercises, but they do really work the upper leg muscles too. It always makes them feel crampy. "True" cramps involve part or all of a single muscle or a group of muscles that generally act together, such as the muscles that flex several adjacent fingers. Most authorities agree that "true" cramps are caused by hyperexcitability of the nerves that stimulate the muscles. "True" cramps are commonly associated with the vigorous use of muscles and muscle fatigue (in sports or with unaccustomed activities). Such cramps may come during the activity or later, sometimes many hours later.
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