- Dehydration, either from a general lack of water intake or from prolonged sweating.
- Lack of potassium. Good sources of potassium are tomatoes, halibut, tuna, pork chops, clams, honeydew, and cantaloupe.
- Lack of calcium. You can attain calcium from low carb sources like full fat cheese, salmon, sardines, nuts, spinach, broccoli, and sesame seeds.
- Lack of magnesium. Various nuts (including almonds), seeds, halibut, tuna, and spinach are good sources of magnesium.
Examples of Reciprocal Inhibition for the Top 3 Muscle Cramps
- Bottom of the foot cramp (toes curl down): use RI by contracting the muscles on the top of your feet by performing toe extension, bringing your toes up (here is an example of toe extension).
- Calf cramp: contract the muscle just outside of your shin (tibialis anterior) by bringing the top of your foot towards your knee (it's called dorsi flexion, which you can see here).
- Hamstring cramp: the opposing muscles, the quadriceps, contract by straightening the leg, so try to straighten your leg by pushing your shin against an object in front of you (see here).