There's the upper body ... but make sure the point of contact on the chest doesn’t change. Sets and Reps: This is a high-rep exercise for best results. Aim for 3 to 5 sets of 12 to 20 reps.
If you’re sat slumped at a desk all day, or constantly on your phone, the chances are you probably don’t have the best ... in the upper back, chest, and core". For this workout you've got ...