Bring your body to all fours, wrists below your shoulders and knees behind your hips. Engage your core throughout this plank-like movement. Raise up onto your toes with your heels together, keeping a neutral spine. Unlock your elbows, bending them while you slowly lower your chest through your arms towards the ground. Your shoulder blades will glide together. Stay firm and level from head to heel and pause momentarily at the bottom of your Push Up. Find your elbows at 45 degrees away from your torso, then push away from the ground to return to your plank. Inhale as you descend, and exhale as you rise up. Core stability is key in performing a Push Up safely.