Denise Austin's guide for stretching your knees. Denise Austin's guide for stretching your knees. AARP is a nonprofit, nonpartisan organization that empowers people to choose how they live as they age ...
Denise Austin's guide for stretching your knees. 0:58 Learn how to do a modified mountain climber, then try Denise’s fitness challenge! 1:12 Grab two slices of bread, put them in the toaster, then see ...