If you're cramping at the calf and foot, it could that those muscles are fatigued from overuse. Usually when we feel pain in any part of our body, we tend to stand, sit or move in such a way to lessen the pain. In your case that could lead to the overuse and fatigue of the lower part of your leg due to the unnatural motion or posture.
The quickest way to relieve a muscle cramp is to stretch it. For the lower leg, you could sit on the floor with your legs straight out and toes up. Grab the ball of the foot with both hands and pull back until you feel the stretch in the calf lessen the pain. For the foot, put the hand over the top of the foot so that the toes are pointing back to you and pull back ... this will stretch the foot on the heel end and actually can stretch the calf too. Alternate this for the toe end of the foot by trying to point the toes forward as much as you can by trying to get the toe, ankle and leg in a straight line (while still sitting down as above).
One other thing is to make sure you're properly hydrated by drinking lots of water. Water is essential for healthy fascia. Additionally I put a couple of drops of trace minerals in my water too. As one gets older, I feel it is more important to stretch the whole body. I usually spend about 30 min. a day doing specific exercises to stretch my myofascial lines and other myofascial release techniques. Today on the wrong side of 50 years old, I've become less interested in the high performance of my martial arts but more so in the functional performance and healing aspects of my training. I hope this helps you.
Edited by colman fink (02/17/13 11:36 AM)