Increase the Challenge: Crunches on Exercise Ball
If the basic crunches on the fitness ball in my all abs workout are starting to feel less than challenging, don't ditch the exercise altogether — alter the move to make it harder. Here are some simple tweaks to tax your abs more while doing crunches on an exercise ball. Bring your legs together. The closer together your legs are, the harder it is to keep balance on the ball, forcing your abs Read more






