Lots of athletes will know the feeling. It’s a bit like there’s a small knot forming beneath the skin, in your hamstrings or calves. The tension grows, and the muscle starts to contract involuntarily. The cramp usually begins as repeated twinges or flutter-like waves of contractions. It only builds from there, and shifts from discomfort to sharp, intense pain. You have to stop to stretch it out, which relieves the cramp momentarily, before it comes back, over-and-over again.

Cramp can be debilitating for some athletes, effectively ending races in a painful stop-start jerk to the finish. For lucky athletes, it never seems to happen at all. Exercise-induced cramps are, amazingly, still a bit of a mystery.

In this blog, we’ll discuss what we think might be going on with exercise-induced muscle cramping, and suggest some strategies that athletes might use to combat them.

 What causes exercise-induced muscle cramping?

Like I said, the precise cause of...