"20126
basier.R Prime[G
(
biomechanics Center of gravity
o mechanics relating to the
* Study * where body
weight is evenly
functional and anatomical analysis of distributed in all directions
biological systems * COG = GOM
& mechanical characteristics * COG can be located outside of body
help to understand movements ex
pick up Suitcase -
a LOG is
moved toward the suitcase
Kinematics + Kinetics
* Kinematics : description of a motion Toraut
w a consideration of time, displacement ,
* ability of force to create rotation
- -
·
unity
. Anumeration -> space factors
-
* rotates an object about an axis
of systems
a motion T Fd - direction
= >
-
arm
&
* Kinetics : study of forces
Xy
assoc .
wh torque forse force
motion of a body * movement arm : perpendicular distance
* musculoskeletal system may be thought from line of force
of as simple machines to increase * torque : rotational force
mechanical advantage (MA) * measurement : N m .
* machines function in 4 ways * All muscles produce torque about
1. balance multiple forces the joints they cross
force to reduce total
. enhance
2 * 3 ways to alter torque
force needed to overcome resistance lengthen force arm
. enhance ROM - speed so that
3
resistance man be moved
↳ shortening resistance arm
reducing the resistance
. Alter
resulting direction of applied
4
force Acceleration
* mechanical advantage * forces are responsible for accelerations
&
gained to increase/multiply an * for a force to cause acceleration
applied force the force :
* use a small force to move a * must overcome opposing forces
* metforce o > no motion
greater resistance
* if net force is
opposite
force the object will accelerate but
* linear motion will be in the opposite
* characteristics direction
· magnitudemuscoa
* angular acceleration
pul * same
thing just fighting
,
·
point of application -
muscle against torque
insertion
* Internal force Types of machines in the body
& produced inside body * musculoskeletal system has 3 types
* external force of machines
* produced outside body 1.levers (most commons
*
gravity or physical contact 2 Wheel axels
i pulleys
basier.R Prime[G
(
biomechanics Center of gravity
o mechanics relating to the
* Study * where body
weight is evenly
functional and anatomical analysis of distributed in all directions
biological systems * COG = GOM
& mechanical characteristics * COG can be located outside of body
help to understand movements ex
pick up Suitcase -
a LOG is
moved toward the suitcase
Kinematics + Kinetics
* Kinematics : description of a motion Toraut
w a consideration of time, displacement ,
* ability of force to create rotation
- -
·
unity
. Anumeration -> space factors
-
* rotates an object about an axis
of systems
a motion T Fd - direction
= >
-
arm
&
* Kinetics : study of forces
Xy
assoc .
wh torque forse force
motion of a body * movement arm : perpendicular distance
* musculoskeletal system may be thought from line of force
of as simple machines to increase * torque : rotational force
mechanical advantage (MA) * measurement : N m .
* machines function in 4 ways * All muscles produce torque about
1. balance multiple forces the joints they cross
force to reduce total
. enhance
2 * 3 ways to alter torque
force needed to overcome resistance lengthen force arm
. enhance ROM - speed so that
3
resistance man be moved
↳ shortening resistance arm
reducing the resistance
. Alter
resulting direction of applied
4
force Acceleration
* mechanical advantage * forces are responsible for accelerations
&
gained to increase/multiply an * for a force to cause acceleration
applied force the force :
* use a small force to move a * must overcome opposing forces
* metforce o > no motion
greater resistance
* if net force is
opposite
force the object will accelerate but
* linear motion will be in the opposite
* characteristics direction
· magnitudemuscoa
* angular acceleration
pul * same
thing just fighting
,
·
point of application -
muscle against torque
insertion
* Internal force Types of machines in the body
& produced inside body * musculoskeletal system has 3 types
* external force of machines
* produced outside body 1.levers (most commons
*
gravity or physical contact 2 Wheel axels
i pulleys
