Muscles Used in the Backstroke. Even though you're swimming on your back, you use your abdominals in addition to the muscles of your back -- the latissimus dorsi and spinus erectors -- to support you as you flow through the water during the backstroke.
The average distance for a pitching wedge is 130 to 135 yards; for a sand wedge 115 to 120 yards; and for lob wedges 75 to 95 yards.
They will probably be hitting their pitching wedge a distance between 110 to 125 yards. When it come to their sand wedge, they usually hit that wedge around 80 to 90 yards in distance. If your distance with your pitching wedge 120 yards and your distance with your sand wedge 85 yards, you have a problem.