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.
Pitching wedges are often the first wedge a beginning golfer plays, since theyâre generally packaged with a set of irons. The loft angle of a pitching wedge is between 46 and 50 degrees, depending on manufacturer, and is typically used from the fairway for shots requiring 100 to 120 yards of distance. It can also be used as an all-purpose wedge, but most are better off adding another wedge to their bag.