Right Ventricle · Pulmonary Pump

The Double-Box Drop of Doom

Legs · Capillary Flood · Perfused 2016

The Double-Box Drop of Doom

Pressure Cascade · Mechanism

Welcome to the Double-Box Drop of Doom, officially known as the depth jump, and unofficially known as the exercise that makes your quadriceps question every life decision that led them to this moment. This is an intermediate move, which means if you're a beginner, you should watch from a safe distance — behind a potted plant, perhaps — until your legs are ready for this kind of betrayal.

Here's how it works: you stand on one box, you step off and land on the ground between two boxes, and the instant your feet touch the floor, you explode upward onto the second box like a kangaroo that just received an electric bill. The magic — and the suffering — comes from that split-second landing. Your muscles stretch under the impact like a rubber band being pulled to its limit, and then they snap back with so much force that you barely have to think about jumping. Your nervous system does the work for you, which is great, because your brain will be too busy screaming to provide any useful input.

Depth jumps build explosive power like nothing else, which is why athletes who need to jump high — basketball players, volleyball players, people trying to reach the last jar of pickles on the top shelf — absolutely swear by them. But they also demand respect. Too many reps, too much height, or too little recovery, and your knees will file a formal grievance with your ligaments. Do them right, with controlled volume and solid landing mechanics, and you'll be jumping over things that have no business being jumped over. Like your neighbor's fence. Don't jump over your neighbor's fence.

Erythrocyte CountBaroreceptorVasodilationHematocrit