Lecture 11: Reach and Throw Flashcards Preview

ANTH 324 Exam 02 > Lecture 11: Reach and Throw > Flashcards

Flashcards in Lecture 11: Reach and Throw Deck (15):
1

What is the concept of "Degrees of Freedom?"

helps explain possible movements of the upper limb

2

How many degrees of freedom does a rigid body require?

6
3 positions and 3 angles

3

How many degrees of freedom to move the hand anywhere in space?

6

4

How many degrees of freedom are in the upper limb?

7

5

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

6

What is involved with overarm throwing?

Whip like movement

7

Segments _____ at different times. Because of this, energy is transferred ______ segments

accelerate
between

8

What is the Kinetic Chain?

Proximal to Distal chain of segment movements and energy transfer

9

From lowest to highest velocity, rank the segments that accelerate at different times?

- Trunk
- Upper Arm
- Forearm
- Hand

10

What are the 6 phases of Throwing?

1) Windup
2) Stride
3) Arm Cocking
4) Arm Acceleration
5) Arm Deceleration
6) Follow Through

11

Kinetic chain involves the whole body ( from ____ to ____)

feet
fingers

12

What is involved during Arm cocking?

Humerus is abducting, extending and externally rotating

13

What is "Late Cocking?"
(3)

Foot is planted
Force is transferred to torso
Torso begins to rotate

14

What is happening during the Arm Cocking Phase?
(3)

- Shoulder externally rotated
- Shoulder extended
-Elbow flexed

15

What is happening during Acceleration Phase?
(4)

- Shoulder Internally rotated
- Shoulder flexed
- Elbow extended
-Wrist extended