While working out your pecs, lats, delts, biceps, and triceps takes up most of your upper body days in a fitness routine, spare a thought for the one muscle that connects all those and more. The rear, ...

When your upper body workouts come around, your mind probably jumps to biceps, triceps, and back. But wait! You're missing a major muscle group that (unfortunately) often goes unnoticed: rear delts.

What are your rear delts? Your deltoid muscle, which looks like a large triangle that was placed over your shoulder (the name “deltoid” actually came from the Greek letter “delta,” which is shaped ...

The posterior deltoids help with many pulling movements and stabilize the shoulder joints. Rowing, pull-ups, and other exercises can help to improve posterior deltoid strength. You need strong ...