Medicine or slam balls are an excellent training tool ... I really had to focus hard during the walking pulse lunge and twist to not wobble and topple over, which put my core muscles to work ...

Simple lunge position. Reach out with the ball into ... If you have more than one medicine ball, you might find that you want a lighter one for some exercises and a heavier one for others.

Come down into a squat while holding a medicine ball straight ahead and overhead. This targets inner thighs, abs and glutes. 2. Reverse Lunges “Bring your knee up and come back down,” says Kirsch.

Alternate by stepping out with your right foot. How to do it: Extend your arms straight out while holding a medicine ball. Perform a lunge then rotate your torso left and right. Bring feet back ...