Barbell bench press forms the cornerstone of any weight lifting program that wants to build strength in the upper body using a compound movement.
This exercise is a compound movement that builds strength in lower and upper back and hence forms an integral part of nearly all upper body workout routines.
With a focus on lower body, the barbell squat is a compound movement that engages the entire body with emphasis on building strength and is a great way to start a workout. For building strength, you can lower the repetitions while increasing the weight.