Fundamentals of Biomechanics Flashcards
1
Q
what is biomechanics?
A
the science concerned with internal and external forces acting on the body
2
Q
what is force?
A
influence applied by one object to another
accelerates or decelerates the second object
3
Q
what is torque?
A
a force that produces rotation
the closer the load to the point of rotation, the less torque it creates ( bent arm is easier than straight arm)
4
Q
what is a lever?
A
rigid bar that rotates around a stationary fulcrum
1st class: fulcrum in middle (nodding head)
2nd class: resistance in the middle (calf raises)
3rd class: effort in the middle (bicep curls)
most common in human limbs
