Instructions
Place a bench into a power rack with safety pins, or if your bench has safety racks, set the racks so that they are set at chest height. Take a wide overhand grip on the bar. Position your feet flat on the floor. Extend your hips whilst keeping your butt on the bench and drive your feet hard in to the ground. Arch your lower back and squeeze your shoulder blades together. Take the bar off the rack and position it inline with your lower chest (the bottom of your sternum). Lower the weight until it touches the pins. Let it rest momentarily, whilst keeping a tight body position Press the bar up until your arms are fully extended.
Tips
To maintain a strong upper back position, focus on pushing your chest out through the whole movement. Feet position will vary from person to person, depending on their hip mobility and leg length.