Most people do dumb-bell presses exactly the way they do bench-press that is, gripping the bar/dumb-bells with palms facing to the front.Some choose to rotate the palms inwards while lowering the dumb-bells so that the length of the dumb-bells is parallel to the torso. But I've seen a couple people do flat/inclined dumb-bell presses with their palms facing towards their face all the time. No rotation at all.What does this work on? Tomorrow is my chest workout day, and I'm going to experiment this workout. But anyway, I felt like I should listen to your experiences first. I'm looking for as much isolation of my chest as possible. I've already worked my shoulders today for an hour and I'm not looking to put all the weight on my shoulders instead of my chest.
ive seen this also either i ask pros for help to see if this is safe or correct but if not in their presence i try it out and if i feel like its doing more work and isnt hurting me i incorporate it in my workouts another good chest isolator is weighted push ups its a lot more work than just benching b/c its at least 50 percent your body weight plus the weight on your back even if your benching more than your body weight you'll see the difference between them when doing it also incline or handstand push ups puts 60 to 100 percent of body weight on your arms back and chest super good work out also military press jumping jacks do wonders for your chest you just have to make sure even when jumping you keep correct form here is one of my little circuits i do to tone lift build strength for a whole body but also your mirror muscles abs,chest,back,ect will get much love from this dead lift 1 rep then weight back to floor to power clean straight to military press jumping jack about 5 reps to shoulder squat 5 reps back to floor then repeat of course with heavy weight you might chop this down to fewer reps, as well as if you choose lighter weight you might do more reps