The pike push-up is a great bodyweight exercise for developing strength in our shoulders. It also shares the same vertical pressing pattern of our dumbbell press, preparing us for today’s workout. As a bonus, the pike push-up gets us comfortable being upside down — which you'll need later in the series, when we talk about the handstand push-up. For the pike, think of a downward-facing dog stretch from yoga (if you aren't super flexible yet, put your feet against the wall, as shown in the video). Starting with your arms fully extended, do a push-up, focusing on bringing the top of your head toward the ground. Push back up to full extension to complete the move.