Additionally, make sure your shins stay in contact with the bar throughout this process, and the bar must remain motionless. From your hips on down, nothing should move or change shape.
Once you're in this position, you can feel what it’s like to do it incorrectly, so you're simply going to cue yourself to do the exact opposite of what you just did. You're going to push your belly down between your thighs, thus extending - or straightening - your back (Figure 4). Previously, your back was a mountain, and you now cue yourself to make it a valley (which is an overcue, but we’ll cover that in a bit).