Muscle properties Flashcards
what are larger structures
bundles of smaller structures
what are the smaller structures bound by to make larger structures
connective tissue
sarcomere
smallest contractile unit within muscle
how does contraction work in regard to sarcomere shortening
a single sarcomere doesn’t have much affect, but a combined shortening adds up
2 fiber arrangements
parallel and pennate
parallel fiber arrangment characteristics
greater ROM, less force
pennate fiber arrangement characteristics
less ROM, more force
what is length tension relationship
relationship between length of muscle and force it can produce
what is length tension relationship due to
actin and myosin overlap
is the length tension relationship linear or angular
linear
is the length tension relationship kinematics or kinetics
kinetics
is muscle producing force that produces torque at joints kinetics or kinematics
kinetics
is muscle producing force that produces torque at joints linear or angular
angular - torque
what is the force velocity relationship affected by
active muscles and joint position
what is force velocity relationship for eccentric
the greater the force (weight), the greater the velocity during eccentric, but velocity is less during concentric
what is stress
force that is distributed across a given area
what is the force during stress
compression or tension
what is strain
ratio of object’s change in length compared to its original length
loading
application of force
unloading
removal of applied force
what connective tissues experience mechanical loading
tendon, ligament, bone, and cartilage
what does an increase in stress mean
increase in force
what does increase in strain mean
increase in length
