Flashcards in Lecture 11: Reach and Throw Deck (15):
What is the concept of "Degrees of Freedom?"
helps explain possible movements of the upper limb
How many degrees of freedom does a rigid body require?
3 positions and 3 angles
How many degrees of freedom to move the hand anywhere in space?
How many degrees of freedom are in the upper limb?
What are the 7 degrees of the upper limb?
1) Flex/Extend of scapula
2) Adduction/Abduction of scapula
3) Medial/Lateral scapula
4) Flex/extend of arm
5) Pronate/Supinate of arm
6) Ulnar/Radial Deviation of Hand
7) Flex/Extend of hand
What is involved with overarm throwing?
Whip like movement
Segments _____ at different times. Because of this, energy is transferred ______ segments
What is the Kinetic Chain?
Proximal to Distal chain of segment movements and energy transfer
From lowest to highest velocity, rank the segments that accelerate at different times?
- Upper Arm
What are the 6 phases of Throwing?
3) Arm Cocking
4) Arm Acceleration
5) Arm Deceleration
6) Follow Through
Kinetic chain involves the whole body ( from ____ to ____)
What is involved during Arm cocking?
Humerus is abducting, extending and externally rotating
What is "Late Cocking?"
Foot is planted
Force is transferred to torso
Torso begins to rotate
What is happening during the Arm Cocking Phase?
- Shoulder externally rotated
- Shoulder extended