Stand with your feet hip-width apart and hold the barbell across the front of your shoulders with an overhand, shoulder-width grip. Your elbows should be directly below your hands or pushed slightly forward. Look straight ahead and brace your core muscles.
Inhale, push your hips back, then bend your knees. Descend until your thighs are roughly parallel to the ground. Make sure your lower back remains slightly arched.
Exhale, drive your feet down into the floor, extend your legs and stand up straight. With help from the momentum generated by your legs, push the barbell up and overhead until your elbows are straight but not fully locked.
Lower the bar back to your shoulders and prepare for another repetition.