Humans are made to move seamlessly through three different planes of movement: the sagittal, frontal, and transverse (rotational). The sagittal plane consists of forward and backward movement – running, squatting, deadlifting, rowing, etc. all occur in this plane. Many programs, including most CrossFit programming, is focused on this plane.
The frontal plane is made up of any lateral movement. Exercises like a lateral lunge primarily utilize this plane and should be part of any balanced program.
related posts
The Iso Push-up
It's probably the simplest training method imaginable, but it's oh-so effective in promoting shoulder stability and building power and strength. All it takes is a minute and thirty seconds, three times a week.
40 Movements for Rapid Strength - Part 4
Many lifters and coaches grasp the big picture when they read about the movements I prescribe for strength development, but they often miss the finer points. I've written this "Toolbox" series to help these experienced lifters fill in the blanks. It'll also help newer lifters learn about some very effective exercises.
Tip: Build Your Shoulders. Don't Destroy Them.
Stop doing lateral raises and upright rows wrong. It could be what's wrecking your shoulder health.
7 More Tweaks To Make Your Exercises More Evil
They're still your favorite exercises, just tweaked a bit to make them that much more painful - and productive.