Fundamentals of Biomechanics Flashcards
1
Q
Biomechanics
A
science concerned with internal and external forces acting on the body
2
Q
Force
A
influence applied by one object to another, accelerates or decelerates the second object
3
Q
Torque
A
a force that produces rotation
The closer the load to the point of rotation, the less torque it creates (i.e. bent arm is easier than straight arm)
4
Q
Lever
A
rigid “bar” that rotates around a stationary fulcrum
5
Q
1st class lever
A
fulcrum in middle (i.e. nodding head)
6
Q
2nd class lever
A
resistance in middle (i.e. calf raise)
7
Q
3rd class lever
A
effort in the middle (i.e. biceps curls); most common in human limbs
