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Flashcards in Movement Analysis Deck (22):
1

Lever

A rigid bar that turns about an axis to create movement. All levers contain a fulcrum, load and effort.

2

Fulcrum

The fixed point at which a lever turns or is supported. It can also be referred to as the 'axis'

3

Load

The weight or 'resistance' that the lever must move.

4

Effort

The force required to move the load. It can also be referred to as 'force'

5

Load arm

The distance from the load to the fulcrum

6

Effort arm

The distance from the effort to the fulcrum

7

Mechanical advantage

Measures the efficiency of a lever. Calculated: effort arm divided by load arm

8

Extension

Increase in the angle of bones at a joint

9

Flexion

Decrease in the angle of bones at a joint

10

Abduction

Movement of a bone or limb away from the midline of the body

11

Adduction

Movement of a bone or limb towards the midline of the body

12

Plantar flexion

Movement at the ankle joint that points the toes and increases the angle at the ankle joint

13

Dorsiflexion

Movement at the ankle joint that flexes the foot upwards and decreases the angle at the ankle joint

14

Rotation

A circular movement around a joint or, in other words, a movement around an axis

15

Plane

An imaginary line that splits the body in two and depicts the direction of movement. There are three types of plane: frontal, transverse and sagittal.

16

Frontal plane

Runs left to right and divides the body into front and back halves.

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Transverse plane

Divides the body in half horizontally

18

Sagittal plane

Runs forwards and backwards and divides the body into left and right halves

19

Axis

An imaginary straight line through the body around which it rotates. Three types of axis: sagittal, transverse and longitudinal.

20

Sagittal axis

Runs horizontally through the body from front to back, through the belly button

21

Transverse axis

Runs horizontally through the body from left to right at the hips.

22

Longitudinal axis

Runs vertically through the body, from head to toe.