Illustration by Bob Al-Greene

Medicine balls, that is. Add a core challenge to any workout with this tool, from upper body shoulder presses to lunges with a twist, or balancing on your butt while twisting side to side. These weighted spheres also make for a great base to do push-ups off of. What’s your favorite ball move? Here’s a list of 25 to choose from. Let us know!

Takeaway: Medicine balls can help improve muscular power and sports performance.

Do It Today: Aim for three sets of 10-20 reps with good form when using medicine balls.

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