Section Two-Movement analysis Flashcards
What is the sagittal plane?
divides the body between the Left and Right sections
What is the transverse plane?
Divides the body into top and bottom sections
What is the Frontal plane?
Divides the body into front and back sections
What movements occur around the sagittal plane?
Flexion and extension
What movements occur around the transvers plane?
Rotation - torso twists with a medicine ball
What movements occur around the frontal plane?
Abduction/Adduction
what are the three planes of movement?
Sagittal, Transverse and Frontal
What are the three axis of movement?
Sagittal, Transverse and longitudinal
What is the Sagittal Axis?
A pole going from front to back by which you rotate
What is the Transverse Axis?
A pole going from left to right by which you rotate
What is the Longitudinal Axis?
A pole going from top to bottom through your body by which you rotate.
What movement occurs along the Sagittal Axis?
Rotation - A cartwheel
What movement occurs along transverse Axis?
Rotation - Somersault/front flip
What movement occurs along the longitudinal Axis?
Rotation - A 360’ twist
How would you describe running in terms of planes and axis?
In the sagittal plane about a Transverse axis
How would you describe a cartwheel in terms of planes and axis?
IN a frontal plane about a sagittal axis
How would you describe a 360 spin in terms of axis and planes?
in a transverse plane about a longitudinal axis
What is a lever?
a solid bar that moves about a fixed point when force is applied to it.
How does the body use levers?
When a muscle pulls on a bone to move a part of the body about a joint
What is the lever arm?
the bone or body part being moved about a point
What is the effort?
the force applied by the muscles to the leaver.
It is represented by a arrow pointing in the direction of the force.
What is the fulcrum?
The joint where the lever arm pivots. It is shown by a triangle
What is the load?
the resistance against thepull of the muscles on the lever arm. a sqaure is used to represent the load.
What is a 1st class lever system?
The load and effort are at opposite ends of the lever. the fulcrum is in the middle. Tilting your head back is a first class lever. EFL
what is a 2nd class lever system?
The fulcrum and effort are at topposite ends of the lever. The load is in the middle. Standing on your toes uses a second class lever system. FLE
What is a 3rd class lever system?
The fulcrum and load are at opposite ends of the lever . the effort is in the middle. Flexion at the elbow uses a third class lever system. FEL
What is the acronym used to remeber the three lever systems?
EFL the FLE FEL
What is a mechanical advantage?
When a lever can move a large load with a small effort from the muscles. (only moves small distances slowly)
When does a lever have a mechanical?
when the distance from the fulcrum to the effort is greater than the distance from the fulcrum to the load.
What classes always have mechanical advantage?
2nd class lever and some times the first class
How do u calculate mechanical advantage
Effort arm/resistance
What is concentric and escentric muscle contraction
Concentric: muscle which lengthens
Eccentric: muscle which shortens
Check
How do you calculate mechanical advantage?
effort arm/resistance arm
