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PE - Movement Analysis - Coggle Diagram
PE - Movement Analysis
Lever Systems
The coordination of bones and muscles to create movement
Components
Fulcrum
joint
elbow in bicep curl
Load
objected being moved
weight in bicep curl
Effort
muscle contracting
bicep in bicep curl
Lever ARM
bone
1st Class
load - fulcrum - effort
seesaw
increases effort and speed
neck heading a ball
effort
neck muscles
fulcrum
neck
load
weight of head
2nd Class
fulcrum - load - effort
wheelbarrow
make lifting something easier
ankle in en pointe (ballet)
fulcrum
ball of foot
load
weight of body
effort
contracting gastrocnemius
3rd Class
fulcrum - effort - load
most common type
increases speed
bicep curl
fulcrum
elbow joint
effort
contracting biceps
load
weight of forearm / holding
FLE
Mechanical Advantages of Levers
using lever gives greater force of power than effort put in
if distance from effort to fulcrum is longer than distance from load to fulcrum
greater mechanical advantage
2nd Class Levers
move large load with small effort
Planes and Axis of Movement
all body movements occur in different planes around different axes
Planes of Movement
Plane
imaginary flat surface running through the body
Sagittal Plane
vertical
divides body into left and right sides
Flexion and extension
hip, knee flexion while running
Frontal Plane
passes from side to side
divides body into front and back
Abduction and adduction
cartwheel
Transverse Plane
passes through middle of body
divides body horizontally in an upper and lower half
Rotation
shoulder rotation as tennis player puts spin on ball
Axis of Movement
Axis
imaginary line at right angles to the plane, about which the body rotates or spin
Transverse Axis
line runs from left to right through centre of the body
somersault
Frontal Axis
line runs from front to back through centre of the body
cartwheel
Longitudinal Axis
line runs from top to bottom through the centre of the body
360 spin by ice skater
pirouette