by Mens Health
Find out if your core is as strong as it should be.
This week, legendary strength coach Al Vermeil shows you the simple fitness test that he uses to evaluate the core strength of the world’s top athletes. A quick note about Vermeil: As the former strength and conditioning coach for the Chicago Bulls and the San Francisco 49ers, he’s the only person to have two championship rings from two different professional leagues. So he knows his stuff. Ready to take the test? Click the video above to find out if your core is up to NBA and NFL standards.