Lever and Segmental Analysis Flashcards
What is the equation for Pythagoras Theory?
a² + b² = c²
What is the equation for sin ?
Opposite / Hypotenuse
What is the equation for cos?
Adjacent / Hypotenuse
What is the equation for tan?
Opposite / Adjacent
What kind of ‘machine’ is a lever system?
A simple machine that allows us to gain a mechanical advantage in moving an object
What kind of ‘bar’ is a lever system?
A rigid bar that moves on a fixed point called the fulcrum when a force is applied to it
What are lever systems in humans formed from?
Muscles and joints working together
What do human lever systems make possible?
Movement
What, if unequal, lead to movement?
Force and resistance
What produces force?
Muscles
What is a fulcrum?
A joint
What is a lever?
A bone
What is a resistance?
A weight
What is Force (F1) and (F2)?
Give examples.
F1= Muscle, biceps brachii
F2= Weight (resistance), weight of forearm or a dumb bell
What is Distance (D1) and (D2)?
Give examples.
D1 = distance between the joint and the tendon, e.g. distance between elbow joint and radial tuberosity
D2 = distance between the joint and the weight, e.g. distance between the elbow joint and the CoM of the forearm plus dumb bell