The Dumbbell Push Jerk For any jerk variation, the skill consists of using the hips and legs to create upward momentum, then dipping a second time to receive the load in a partial squat. The need to control two dumbbells heightens the demand for coordination and accuracy. Athletes that master the dumbbell push-jerk will develop a solid “lockout” of the arms and intuitive understanding of the overhead position. To learn more about human movement and the CrossFit methodology, visit CrossFit Traini