Stand up straight holding the ends of a resistance band in each hand.
The band should be looped around a solid object, such as a post.
Stand with one foot in front of the other.
Keeping your neck long and your abdominal muscles tightened, pull your shoulder blades back together, then bend your elbows to drawing them in towards your sides.
Control the movement as you allow your arms to stretch back out in front of you again.
Repeat the movement, keeping your posture and balance.