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.
The elements of the pitchers box include The Pit, The Pitching Platform and The Stake. The Pit. The horseshoe pit itself should be no larger than 36 by 72 inches and the rules allow for a minimum size of 31 by 43 inches. The Stake. The horseshoe stake should extend upward 14 to 15 inches with a slight (3â³) tilt forward. The Pitching Platform.