Cramp is a common occurrence in Pilates classes. Cramp is a sudden involuntary contraction of a muscle that occurs in the thigh, calf or foot. Far be it for me to confirm what causes cramp but here are a few ideas:
Some believe that muscles cramps occur because of low calcium or potassium in the blood, others say lack of fluids, and some say circulation.
You may get cramp if you point your feet too hard or curly your toes under, making the muscle in the leg ...overactive, so try not to point your feet too hard and maintain a relaxed foot position.
Stretching the affected area is a good option, so stretch the calf or the hamstring or if in the foot flex the foot and rub, or walk on your heels!
To prevent muscles cramps have a diet rich in magnesium and potassium. Eat a banana before the class and stay hydrated throughout the day. Muscle cramps occur more frequently in the older generation due to muscles wastage, so even more important as you get older. Of course if cramps are frequent then medical advice should be taken.