similar problem... did you find relief?
Buzzbee...
I suffer from a somewhat similar problem. Although I am not a cyclist, I use the ellipitcal machine or walk uphill on the treadmill for about 90 minutes/day, 5 or 6 days a week, and have been doing so for years. When hiking downhill many months ago, my legs cramped up so severely that I couldn't bend my knees, and my legs were shaking from pain. It took me 5 hours to cry my way down the very short hill. I had cramping in my quads, calves, and glutes bilaterally. This has happened several times since the initial time, when walking downhill. It also happens about 1/4 of the time when I run, sometimes occuring at the beginning of my run, sometimes in the middle, and sometimes at the end. This winter, it happened when skiing a double black diamond. It seems almost random, and occasionally it is just one quad that will cramp, sometimes the other leg, or calf, etc... These problems have never happened until this past September, although my activities have been similar throughout the years. I do exercise a bit more on the elliptical in the past 3 years than I have in earlier years, mainly because I moved to the south 3 years ago and exercise indoors more often now. I have seen my general practicioner who tested me for nutritional deficiencies, a rhematologist who tested me for a variety of muscle disorders, and an orthopedic surgeon who referred me to PT. In PT I focused on eccentric strength training and some cardio cross training, like cycling and aerobics classes. I have done this for 4 months and last time I hiked downhill the pain was present almost immediately. I do have a lot of laxity in both of my knees, although the orthopedic docs can't pinpoint how this might be related. It looks like I'm going to the vascular specialist and having imaging of my hips and lumbar spine done next. I'm at a loss.
Did you ever find a solution? Thanks so much.