Fundamentals of Biomechanics

Question 1

biomechanics

Answer 1

science concerned with internal and external forces acting on the body

Question 2

force

Answer 2

influence applied by one object to another, accelerates or decelerates the second object

Question 3

torque

Answer 3

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.

Question 4

lever

Answer 4

rigid “bar” that rotates around a stationary fulcrum

Question 5

lever 1st class

Answer 5

fulcrum in middle (nodding head)

Question 6

lever 2nd class

Answer 6

resistance in the middle (calf raise)

Question 7

lever 3rd class

Answer 7

effort in the middle (biceps curl); most common in human limbs