This may be a different version of the Donkey Whip than you are used to. Nevertheless, we believe this exercise will increase hip mobility and strength as well as core and glute strength.
Preparation: Start in the Plank position. Make sure your shoulders, hips, knees, and ankles are in a straight line.
Execution: Take your right knee towards your right elbow. Your knee should be approximately 2 inches off the ground. Return to the Plank position and repeat with the left leg. Perform 10-15 repetitions on each side.
Notes: Be sure that your Plank stays in tact throughout the entire movement. You should feel like you are in the army crawling under barbed wire.