In general most of us do a lot of activities where we hunch forward and it is really important to make sure we are doing strength work to counteract that. Think through your day and see where your posture suffers. Doing computer work? Gardening? Driving? Reading your tablet or even a book? Writing? Running?
This exercise only requires dumbbells and can counteract all the hunching we do and focus on the often neglected shoulders and upper back.
Strong upper back muscles can help balance shoulder strength to protect our shoulders. As runners these muscles are very important as there is a direct link between upper back muscle fatigue and a breakdown in form which can result in possible injury.