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.
Instructions. Remove a circle of turf 10 to 18 feet in diameter, depending on the space available. Use a measuring tape to ensure that the center of the pitcher's mound is the proper distance from home plate. Distances vary from 46 feet in Little League to 60.5 feet in adult leagues.Level the exposed soil with a garden rake.Pound a wooden stake or metal rebar post into the center of the pitcher's mound circle and mark the stake or post where it is 10 inches above the ground.nstructions. Remove a circle of turf 10 to 18 feet in diameter, depending on the space available. Use a measuring tape to ensure that the center of the pitcher's mound is the proper distance from home plate. Distances vary from 46 feet in Little League to 60.5 feet in adult leagues.