You kick with everything you've got. Your coach calls for more height. You kick harder. And on video, the jump still reads low — even though, frame by frame, your legs are actually getting up near hip height.
Here's the secret hiding in that video: your legs were never the problem. Your chest dove down to meet them.
What the chest drop actually is
The eye — a judge's eye, a coach's eye, your own eye watching the replay — reads leg height against your torso. When your chest folds forward at the peak of the jump, the gap between chest and legs shrinks from the top instead of the bottom. The legs LOOK low. The whole jump reads as crumpled instead of wide and proud, and the athlete usually hears "kick higher" when kicking was the one thing already working.
A touch of forward presence in a toe touch is normal. Folding in half is a different picture entirely. If you pause your video at the very top and your shoulders are diving toward your knees, you've found it.
Why the chest goes down there
Almost always, the chest drops because it's compensating. Lifting your legs toward a tall, proud chest takes real hip-flexor strength — the muscles along the front of your hips that pull the thighs up. When those muscles can't lift the legs high enough on their own, your body improvises: it sends the chest down to close the distance. It feels like a bigger jump. It photographs as a smaller one.
That's why the fix is never "kick harder." Kicking harder into a folded posture just makes the fold arrive sooner. The fix works from both ends at once: posture that stays proud, and hip flexors strong enough that the legs rise to YOU.
A cue that works: show the front row your collarbone — for the entire jump, from the set to the landing. If your collarbone stays visible at the peak, your chest stayed up, and suddenly the same leg height reads a level higher.
This is also one of the easiest faults to catch on camera. Film a jump side-on and the chest angle is impossible to miss; CoachVision reads that clip from a regular phone and gives you a measured score for your chest and posture alongside height, legs, arms and landing — so you can watch the chest-drop number climb week over week instead of guessing.
The drill — Seated Straddle Lifts at the Wall
This drill rebuilds the fault from both ends in one move. Sit in your straddle with your back flat against a wall, hands off the floor. Lift one leg a few inches, hold it two counts, lower it slow. Then the other side.
The wall is the coaching genius here: it makes a chest drop physically impossible. With your back pinned tall, the only way that leg comes up is hip-flexor strength — exactly the muscles that put your toes in the air while your chest stays proud.
Do 3 rounds of 8 lifts each leg. The lifts will be small at first. That's honest work, not a setback — every inch the wall version gains shows up in the air, where nobody is holding your chest up but you.
Chest proud. Legs rise to you. That's the whole assignment — and it's very, very learnable.