Which of the following is a common mobility drill used in CrossFit?

Hip openers are a common mobility drill used in CrossFit because they specifically target the hip joints, which are critical for a variety of movements performed in CrossFit workouts. Mobility drills like hip openers enhance flexibility, range of motion, and overall joint health, enabling athletes to achieve better positions during lifts and improve performance in dynamic movements. Improved hip mobility can contribute to more effective squats, cleans, and snatches, which are fundamental to CrossFit training.

The other options focus on strength or conditioning rather than mobility. Push-ups and burpees emphasize upper body strength and cardiovascular fitness, while deadlifts are a strength-building exercise targeting the posterior chain. Though these exercises are essential components of CrossFit training, they do not serve the primary role of improving flexibility or mobility in the same way that hip openers do.