One of the unsung heroes of dumbbell exercises, the lying rear delt fly not only strengthens your shoulder muscles but also helps prevent shoulder injuries. Mastering this exercise will bolster ...

Staying tight to the bench, row both dumbbells up towards your hips, pause (B) and slowly lower before repeating. These movements hit your rear delts using ... super strict by lying prone on ...

'The rear delts (known as the posterior deltoids) are the muscles on the backside of the shoulders,' says Macy Pruett, CPT, a ...