Mechanics of Human Movement Analysis Flashcards
1
Q
Normal force
A
Perpendicular contact force acting between 2 objects
2
Q
Examples of normal force
A
Compression and tension forces
3
Q
Shear force
A
Produced as 2 compressed objects slide past each other in opposite directions
Parallel to contact surface
4
Q
Ground reaction force
A
Normal + shear force
Floor providing equal and opposite force to person
5
Q
Joint reaction forces (JRFs)
A
Equal to difference between internal and external forces
Sum of forces on contact surfaces + passive elements
6
Q
Ways to reduce JRFs
A
Decrease muscle activation (isometric instead of concentric activation)
Decrease external force (small weight/move weight more proximal)
