The Hip Hinge
When performing a hip hinge, make sure the athlete is gripping the ground with their feet, stabilizing the core, pulling shoulders down and back. The critical component of a hip hinge is minimal flexion at the knee. All the range of motion is coming at the hip. This includes lower back activation, glute activation and hamstring activation.
The Squat
While the squat also includes motion at the hip, there is much greater knee flexion and quad activation.
Check out the tutorial below to learn more.