Throwing Flashcards
What are the 5 phases of movement in throwing?
- Stance
- Preparatory
- Movement
- Follow through
- Recovery
Which phase of throwing movement involves the deceleration of the body after movement?
Follow through
Which phase of throwing movement involves the muscles lengthening for force generation?
Preparatory
Which phase of throwing movement involves a comfortable and balances position as well as aligning the joints and body parts?
Stance
Which phase of throwing movement involves the “action” of throwing?
Movement
Which phase of throwing movement involves the regaining of balance and position?
Recovery
Which phase of throwing movement involves storing potential energy for the throw?
Preparatory (the muscles lengthening stores the potential energy).
Which phase of throwing movement involves the conversion of the potential energy gained in the preparatory phase into kinetic energy?
Movement
True or false:
Pitching from the stretch increases the wind-up time.
False
What is the cocking phase of throwing?
The time from when the ball leaves the glove to the point of maximal external rotation of the shoulder.
What are the two things the preparatory category is divided into?
Wind up and cocking
What is the wind up?
The initiation of the pitching motion to the ball leaving the glove–the thrower is positioning the body so all the segments can coordinate themselves for throwing. This begins to build up energy from the hips, thighs, and core.
What gives time to transfer energy from the lower body and core to the upper body to increase the force of throwing?
Cocking.
What is the reason for the cocking phase of throwing?
To increase the distance force that is applied to the ball.
What movements occur during the cocking portion of the preparatory phase?
The stride leg is lifted, moves forward, & then plants.
The shoulder reaches the point of maximal external rotation as well.
What is the movement phase also known as in throwing?
The acceleration phase
What happens during the acceleration (movement) phase of throwing?
From when the hand begins to move forward to the point where the ball is released.
What happens to the anterior structures during the acceleration phase?
They were wound up like a spring and then released to accelerate the ball.
What is the most common phase of throwing to produce pain?
The acceleration (movement) phase.
How fast is the arm moving during the acceleration phase of throwing?
However fast the speed of the ball is–for example, if you throw a 98mph fastball, then your arm was moving at 98 mph during the acceleration phase.
What is the average speed of internal rotation during the acceleration phase of throwing?
6000+ degrees/second.
What two things is the follow through phase of throwing divided into?
Deceleration and follow through.
