Many of us could benefit from more "planes of motion" training in our workouts. In a nutshell, the body is designed to move in three planes of motion: sagittal (like in a squat or bicep curl), frontal (like in a lateral lunge or side cable raise) and transverse (like in a "curtsy" lunge or a bicycle crunch). Most of us live almost exclusively in the sagittal plane limiting our functional mobility, strength and performance. Read more about the importance of planes of motion. in addition to standard sagittal exercises (which are still great) consider layering in more frontal and traverse moves to your program for your lower body, upper body and core.