Weighted Pike Push-Up

Set up with your hips piked high, feet close to your hands, so your torso is closer to vertical than horizontal -- more like a shoulder press aimed at the floor than a flat push-up. The steeper your hips, the more the work shifts from your chest into your shoulders. Lower the top of your head toward the floor by bending your elbows back, then press through your palms to straighten your arms and return to the piked position. Keep your hips high throughout rather than letting them drop toward push-up height, which undoes the whole setup. The added weight makes holding that pike the hardest part, well before your shoulders give out.