Moving Objects: Throwing, Striking, Kicking Flashcards
Movement of body segments resulting in the production of a summated velocity at the end of the kinetic chain of segments.
Sequential Movement
True or false: impulse has no effect on final velocity.
False.
Sequential movement is most frequently used to produce ____ _________ in external objects.
high velocities
Four phases of throwing, striking, and kicking.
1.) Preparatory movement (backswing/wind up)
2.) Establish base of support
3.) Force phase
4.) Follow-through
The overarm pattern involves _______ of the shoulder joint, _________ and _______ at the arm, and ________ of the pelvis.
Rotation, internal and external rotation, rotation
The underarm pattern involves ______ of the arm.
Flexion
The sidearm pattern involves _______ _______ of the opposite hip and abducted arm and ______ _______ of the spine toward the throwing arm.
medial rotation; lateral flexion
The kicking pattern involves _____ of the pelvis, _____ of the hip, _____ of the leg, and ______ of the knee and the hip.
rotation; abduction; flexion; extension
Striking and kicking are example of the ___________ nature of force application.
momentary contact
Throwing is an example of the _________ nature of force application
projection
Anatomical Principle #1: Muscles contract more forcefully if they are first __________.
stretched
Anatomical Principle #2: Unnecessary movements and tension mean ___________________ ___ ________
awkwardness and fatigue
Anatomical Principle #3: Skillful performance can be developed only by _____________.
practice
Anatomical Principle #4: The most efficient type of movement is _________.
ballistic
Anatomical Principle #5: When performing a specific motion, appropriate _______ should be used.
levers
Mechanical principle of throwing #1: The object will only move if the force is of sufficient magnitude to overcome ________.
inertia
Mechanical principle of throwing #2: The pattern and range of joint movements depends on the ______ of motion.
purpose
Mechanical principle of throwing #3: Force exerted by the body will be transferred to an external object in proportion to the __________________________________.
counterforce of the feet against the ground
Mechanical principle of throwing #4: _________ ________ is imparted to an external object as a result of angular velocity of the body segments.
linear velocity
Mechanical principle of throwing #5: Optimum summation of internal force is needed if ______ force is to be applied to an object.
MAXIMUM
Mechanical principle of throwing #6: For a change in momentum to occur, force must be applied ______ ______.
Over time (impulse)
Mechanical principle of throwing #7: Force applied in line with the object’s center of gravity will result in _____ motion.
linear
Mechanical principle of throwing #8: If the force applied to an object is NOT in line with its center of gravity, it will result in _______ motion.
rotary
