Chapter 5 Flashcards
Motor behavior
Motor response to internal and external environment stimuli
Inferior
Position below a reference point
Isokinetic
A muscle shortens at a constant speed over a full range of motion
Lateral
Positioned toward the outside of the body
Proximal
Nearest to the center of the body or point of reference
Distal
Positioned farthest from the body or point of reference
What is Concentric muscle contraction
Muscle shortens
Motor control
How the nervous system integrates internal and external sensory info to produce a motor response
Abduction
Away from the middle of the body
Adduction
Toward the middle of the body
What is the transverse plane of motion
Bisecting the body in top and bottom. Most injurieshappen in this plane ( any type of rotation . Any other time of clock)
Second class lever
The output force is between the fulcrum and the input force like a wheel barrel
Motor learning
Integration of motor control process through practice and experience
what is Isometric contraction
Muscle length does not change( a hold like plank )
First class lever
Have the fulcrum in the middle like a seesaw . The input force and output force are on opposite sides
Third class lever
The input force is between the fulcrum and output force. Like the forearm in a dumbbell curl
Medial
Positioned near the middle of the body
what is the Sagittal plane of motion
Bisects the body into left and right halves. (Flexion and extension. 12 and 6 on the clock)
What is the Frontal plane of motion
Bisects the body from front and back.(Lateral movement/abduction adduction . 3 and 9 on the clock)
Anterior
On the front of body
Superior
Positioned above a reference point
Posterior
On the back of body
What is a force couple
Muscle groups moving together to make movement around a joint. (Ex. Hamstrings,quads, and ass during a squat)
Length tension relationship
The resting length of a muscle and the tension the muscle can make at this length
What is eccentric muscle contraction
Muscles lengthens . Negative part of lift.
