Elbow Ergonomic Tips
Your Elbows should be at their sides, at 120 degrees or more. This will allow for better blood flow. This is because the brachial artery bifurcates (breaks into 2 arteries) in front of the elbow joint. It bifurcates into the radial and ulnar arteries.
So by putting your elbows in a more correct position, you help your blood circulation in this important area.
If you are like us, you don't walk around with a protractor (although we did in our Radiology Classes back in school). So we suggest keeping your arms at your sides with slightly more than a 90 degree bend.
An even better way to remember this angle is to just keep the center of your keyboard level with the height of the elbow.