Ab-bersize 3

Medicine balls are fun - fun in that they usually illicit reactions that inspire you to go old school.

So go for it: before science became involved, before drugs became a fast-track, our forefathers of fitness sculpted their own hawtness with the help of medicine balls. Here is an ab=bersize that should give you a nice burn.

Reverse Crunch with Knee Drops

Laying on your back with hands resting by your sides, raise your feet off the floor create a 90 degree angle with your legs. Placing a 4 kilo ball between your knees, squeeze it tightly, all the while keeping the small of your back flat to the floor.

Pulling your knees toward your chest, contract your abs and return them to the starting position - ie feet off floor, legs bent at 90 degrees. Once here, lower your knees to the right, bringing them back tot he starting position before dropping your knees to the left. For the next rep, alternate the side to which you drop your knees.

Slice 'em up!