The duck walk is an exercise that strengthens your legs while improving the use of your ankle and knee joints.

This exercise is used to strengthen the ankles and thighs. Duckwalk definition is - to walk while in a crouch or full squatting position. Airmen duck walk with their weapons held atop of their heads during the Air Force Pararescuemen Indoctrination "Hell Week" Course, September 6, 2011, Lackland Air Force Base, Texas. If you have problems with joint flexibility, opt for a shallow squat as you do the duck walk. It is also a test of balance, flexibility, and agility. Step 1: Stand with your feet a little more than hip-distance apart.

Otherwise, go into as deep a squat as you can while maintaining correct form.