Unlock this article and bundle up with Outside+.
Already have an Outside Account? Sign in
40% Off Holiday Sale, Ends Nov. 28
$4.99 $2.99 / month*
Get the one subscription to fuel all your adventures.
- Map your next adventure with our premium GPS apps: Gaia GPS Premium and Trailforks Pro.
- Read unlimited digital content from 15+ brands, including Outside Magazine, Triathlete, Ski, Trail Runner, and VeloNews.
- Watch 600+ hours of endurance challenges, cycling and skiing action, and travel documentaries.
- Learn from the pros with expert-led online courses.
*Outside memberships are billed annually. You may cancel your membership at anytime, but no refunds will be issued for payments already made. Upon cancellation, you will have access to your membership through the end of your paid year. More Details
Video loading...
Medicine-Ball Russian Twist
Sit with your feet on the floor, knees bent, and hold a medicine ball with both hands in front of your chest. Lean back slightly with a straight back and hold here as you twist side to side, touching the ball down to the outside of your hips with each rep.