Beware of a hilly course if you suffer from leg cramps when running

Beware of hills!: "cramp"

Hills are definitely one of the factors that can cause cramp particularly when you're already tired.

One of the best things you can do is increase the amount of hill training in the lead up to an event - especially an event that has a hilly course.

Many of our Ultimate Cramp Busting Guide readers have followed the advice we give in the book for designing a program that reduces the likelihood of cramping.

We found people get best results if they combine this type of workout with the flexibility exercises we recommend.