Wall Push-Ups

Stand facing a wall, hands placed slightly wider than shoulder-width. Perform the drawing-in maneuver (pull belly button to spine), squeeze your glutes, and tuck your chin so your body forms a perfectly straight line from head to heels. Take 4 seconds to lower your chest toward the wall. Hold for 2 seconds at the bottom without letting your hips sag or shoulders elevate, then press back up in 1 second. (Tempo: 4/2/1/1)