Medical Definition of Z LINE. : any of the dark bands across a striated muscle fiber that mark the junction of actin filaments in adjacent sarcomeres.Britannica.com: Encyclopedia article about Z line.efinition of Z LINE. : any of the dark thin bands across a striated muscle fiber that mark the junction of actin filaments in adjacent sarcomeres. ADVERTISEMENT.
The average fb speed in the MLB is 91-92ish. Catchers compete with this when trying to throw down a runner at 90ish. The average throw speed from third base is 80 MPH. As for the rest of the positions I am not sure of the exact average, but it is not as fast or faster than pitch speed.
Save. Pitchers are often known by how fast they can throw the ball. A radar gun is most accurate, but you can also calculate the speed by hand. To calculate the speed of a pitch, you need to know the distance the ball traveled and the time it took to travel.Speeds of baseball pitches usually are measured in miles per hour.rofessional baseball mounds are 60 feet 6 inches, and the distance in Little League is 46 feet. Use a stopwatch to calculate the time it takes for the ball to reach home plate. Calculate the ball's speed in feet per second by dividing the distance covered, found in Step 1, by the time elapsed, found in Step 2.