
Originally Posted by
idoru2005
I had this problem when I first started on longer and harder rides. I still have cramping issues when I'm pushing myself to the next "level" or going harder than I've gone before. On the outset, I went and had my bloodwork done and found my electrolyte levels to be within normal ranges (while not exercising of course). I began taking a daily multivitamin (which I wasn't doing when I first started riding). I changed my diet (with help of my wife) to a more plant-based whole-foods diet (btw, I'm NOT a vegetarian). I also start take potassium and calcium supplements several days ahead of a big ride/century etc.
All those nutritional changes have now become habit. So I've basically eliminated any "electrolyte" concerns as the cause of my cramping. The only other thing to do is HTFU. Basically keep working out hard on the bike and push out your cramping threshold. When you set out on a long ride, drink and eat early and often. Also if you are taking Endurolytes or other electrolytes, start taking them early. Don't wait to become depleted before you start taking them. And finally, take a roll of TUMS or Rolaids with you always. This is part of my emergency cramping kit. If I even feel the tickle of cramps, I'll pop a TUMS and whatever chemical imbalance that might have tipped the wrong direction is almost immediately corrected.
Other suggestions: Stretch and use a foam roller religiously. If you can, do some gym workouts focusing on the the legs. Not just the big muscles of the legs that work the most during cycling, but pay attention to the smaller muscles that don't get used much during cycling. Could be those smaller, weaker muscles are tiring out sooner while you are on the bike and possibly those muscles are triggering the cramps. Finally, someone else mentioned examining your fit. When I moved my cleats further back (towards the arches), my cramping episodes decreased significantly.
Bottom line: You need to take a holistic view of your cramping issues.