2 Movement Analysis Flashcards
what axes goes with the frontal plane
sagittal axis
what axes goes with the transverse plane
longitudinal axis
what axes goes with the sagittal plane
transverse axis
sagittal plane
splits body into left and right
sagittal axis
runs front to back
transverse plane
splits body into top and bottom
transverse axis
it runs from the left to right (across the body)
frontal plane
splits the body into front and back
longitudinal axis
runs from head to toe
what axis and plane does a cartwheel take place on
frontal plane + sagittal axis
what axis and plane does a front somersault/forward roll/running action take place on
sagittal plane + transverse axis
what axis and plane does a 360° twist (ice skating spin)/discus thrower rotating in circle take place on
transverse plane + longitudinal axis
what is in the middle in a first class lever
fulcrum
what is in the middle in a second class lever
load (resistance)
what is in the middle in a third class lever
effort
example of a first class lever
tricep
example of a second class lever
gastronemius
example a third class lever
bicep
formula for mechanical advantage
mechanical advantage = effort arm / resistance arm
what is the effort arm
distance between the fulcrum and the effort
what is the resistance arm
distance between the fulcrum and the load
what is mechanical advantage
if a lever’s effort arm is longer than its load arm, it is said to have high mechanical advantage. Levers with high mechanical advantage can move large loads with a relatively small amount of effort. Second class levers always have high mechanical advantage
