The Russian twist is a great underrated ab workout for people of all fitness levels or ages and can be scaled harder or easier with a heavier or lighter medicine ball. Even with no weight at all ...

Maybe you plan to use your medicine ball for exercises like Russian twists and mountain climbers, to avoid disrupting neighboring apartments. But if you intend to slam the ball against the wall or ...

Russian Twist with Weight: Add a light weight or a medicine ball to increase resistance and make your muscles work harder. 4.

For the workout, I recommend one of the best kettlebells for weight training and a medicine ball; this just needs ... stick ...