Now with both parts!
Flexibility is one of CrossFit’s 10 fitness domains, but it’s often overlooked by athletes focused on sexier domains such as strength, power and endurance. In this video shot at CrossFit Santa Cruz, Kelly Starrett explains that a lack of mobility will hurt your performance just as much as poor cardio or a lack of strength.
Analyzing an athlete with hip and knee issues, Starrett shows exactly how poor flexibility limits what you can do during a WOD. Imagine tackling a workout and being unable to fully extend your arm because of tight muscles. As strange as that may seem, many athletes dive into CrossFit with lower-body mobility issues that put them at a similar disadvantage and prevent them from performing at a high level.
“If you’re missing a bunch of hip range of motion, you kind of have fewer options mechanically,” Starrett says. “You’re forced into certain mechanical compromises.”
In Part 2, Starrett explains how you can improve your mobility with simple stretches and mobility exercises.
Starrett is a doctor of physical therapy and the owner of San Francisco CrossFit.
Additional reading: A Postural Error: A Costly Biomechanical Fault—Muted Hip Function (MHF) by Greg Glassman, published Jan. 1, 2003.