Fitness: This pushup variation will make your arms sore for days

Push yourself (get it?) to the limit with this challenging pushup variation.

Check out Women's Health's FitGIF Friday every week for fun and challenging new moves to make your sweat sesh really count. Here's this week's exercise:

Stability ball pushup: Push yourself (get it?) to the limit with this challenging pushup variation. Adding a stability ball to the mix helps shift the majority of your weight to your upper body, which strengthens your arms, shoulders, and abs like crazy.

Push yourself (get it?) to the limit with this challenging pushup variation. Read Full Story