Find out how to do a Russian twist. Learn what muscles are used, the health benefits of Russian twists, and tips about mistakes to avoid.

Are you looking for a complete ab workout using only a medicine ball? Try these seven effective exercises. The post A ...

Weighted twist Hold a dumbbell, weight plate, or medicine ball between both hands. If you don’t have a weight, grab a compact household item. Choose a weight that allows you to maintain proper form.

A trainer explains how to do Russian twists with proper form to work your entire core, shoulders, low back, and more.