Norepinephrine performs its actions on the target cell by binding to and activating adrenergic receptors. The target cell expression of different types of receptors determines the ultimate cellular effect, and thus norepinephrine has
While specific vitamins and minerals do not cause muscle cramps, a deficiency in potassium or magnesium can lead to sports-related leg cramping, according to Everyday Health. Additionally, a deficiency in vitamins E, A, and B causes cramping due to reduced circulation, as explained WeightTraining.com. Keep Learning.
While not vitamins, these minerals are very important for relieving leg cramps. They are the body's electrolytes and necessary for proper muscle contractions. These minerals can easily be lost through intense exercise. A diet that is lacking in one mineral can lead to difficulty absorbing the other minerals.