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.
3. Velocity. Now let's build on this for a minute. Generally, 14 year old average cruising speed would be about 65 mph. Average freshman pitcher (14 to 15 year old) cruising speed would be about 70 mph. Average cruising speed for a good high school pitching prospect at 14 to 15 years old would be about 75 mph.That will usually get a freshman pitcher onto the JV team, assuming reasonable pitching ability to go along with the pitching velocity. Cruising at 80 mph as a freshman would be a potential star.verage cruising speed for a good high school pitching prospect at 14 to 15 years old would be about 75 mph. That will usually get a freshman pitcher onto the JV team, assuming reasonable pitching ability to go along with the pitching velocity. Cruising at 80 mph as a freshman would be a potential star.