If you're a guy who lifts weights and does overhead presses, doing the front version might fire up your front shoulder and chest muscles more than the back version — so it could be better for building those areas.

If you're a guy who lifts weights, doing the back-overhead press might fire up your rear shoulder and triceps muscles more than the front version when you're lowering the weight.

If you're a male bodybuilder, doing the back barbell shoulder press lights up your side shoulder muscles more than the front version — both when lifting and lowering the bar, and the difference is really big.

For competitive male bodybuilders, lowering the bar behind the head during shoulder presses seems to work the side of the shoulder muscle harder than pressing in front, based on muscle activity readings.

When guys who lift weights do a one-arm shoulder press, using heavier weights (up to 70% of their max) makes several key shoulder and back muscles work a lot harder than using just a light 6 kg dumbbell.

If you're a guy who lifts weights, doing shoulder presses works your front shoulder muscles way more than bench presses, flys, or lateral raises. It's one of the best moves to really fire up those front shoulders.