Single-Arm Strict Press
Core Focus: Spinal Erectors, Rectus Abdominis, Obliques, Transversus Abdominis
Stand with feet shoulder-width apart, a kettlebell racked at right shoulder, left arm extended at side; shoulders should be down and back, abs and glutes tight. Press kettlebell straight overhead, elbow to ear. (As you press, push feet into the floor, squeeze glutes, and engage abs as though defending a punch; your torso should be rigid, with no swaying to one side or the other.) Hold for a beat and return to start. Repeat for 12 reps, then switch sides. Do three sets.