Biomechanics - 11 - Linear Kinetics Special Applications

inertia, elasticity, viscosity, friction

normal joint motion is resisted by these 4 things:

inertia

______= f(tissue mass)

elasticity

______= f(joint displacement)

viscosity

______= f(joint velocity)

friction

______= f(joint loading)

centripetal

(centripetal/centrifugal) force: a real force

centrifugal

(centripetal/centrifugal) force: not really a force

centrifugal 

(centripetal/centrifugal) force: center fleeing 

centripetal

(centripetal/centrifugal) force: center seeking

centrifugal

(centripetal/centrifugal) force: the tendency of an object following a curved path to fly outwards

centripetal

(centripetal/centrifugal) force: a force that counteracts the (opposite) force and keeps the object moving with a uniform speed along a circular path

COP 

the ______ is the point of application of GRFV

force * distance

mechanical work = ________ * __________

no

is there work done during isometric contractions?

positive

(positive/negative) work is concentrics

negative 

(positive/negative) work is eccentrics 

kinetic energy

if an object has mass and is moving, there is _________

kinetic energy

__________ is the ability of an object to do work resulting from it’s motion

potential energy 

__________ is the ability of an object to do work resulting from it’s position

potential 

elastic energy is a subset of _______ energy 

kinetic + potential ; if one is increasing the opposite is decreasing

conservation of energy indicates that total energy is a function of ___________________

power

______ is work done per unit of time

more

greater distance means ______ work

time 

power increases when you decrease the _______ for the activity