Questions 5 Flashcards
What describes the movement of joint surfaces when they move?
Arthrokinematics
What describes the movement of joint surfaces when they move?
Arthrokinematics
Equilibrium occurs when F x Fa > R x RA? T/F
False
When an object deforms in response to an application of force and then returns to its original shape and size after the force is removed, that force is said to be in the ____ region of the deformation curve?
Elastic region
What is the term for the study of motion of bodies in space?
Kinematics
AROM test done and recording elbow AROM of -30/40 shows what?
10 degrees arc of motion
*The -30 indicates that this clients max ext is 30 degrees short of full ext. The 40 indicates he has only 40 degrees of flex. Thus he has a 10 degree arc of motion.
Which of the following represents a 3rd class lever?
Axis/Force/Resistance
Which of the following represents a first class lever?
Force/Axis/Resistance
Which Law is this?
- The same amount of horsepower will move a compact car more quickly than a sport utility vehicle
- If you notice that a person lifts a grocery bag with a couple boxes of cheerios just as quickly as they lift a grocery bag filled with cans of soup, you can infer that they used more force to lift the bag of soup cans
Second Law
T/F From smallest to largest: -Myofilaments -Myobril -Muscle fiber -Muscle fasicle -Muscle belly
T
What is Henneman Size principle?
Smaller motor units are recruited first
What is recruitment?
Muscle force modulation achieved by changing the number of motor units being stimulated
What is Rate Coding?
Muscle force modulation achieved by changed the frequency of stimulation
What is Golgi Tendon Organ?
Stimulated by tension
What is muscle spindle?
Stimulated by rate of length change
Where are the Golgi Tendon Organs Located?
Tendon
What tissues are responsible for the shapes of the passive length tension curve?
Noncontractile connective tissue in the muscle-tendon unit
What is Person moves a joint under their own muscle power?
AROM
What is tissues that cross a joint are lengthened by an external force that moves the joint away from those tissues and holds them under tension for a period of time?
Passive stretching
What is a persons joint is moved for them with an external force
PROM
What is a person tries to move a joint with their own muscle force, and that internal force is supplemented by an external force as well to complete the motion?
AAROM
What is tissues that cross a joint are lengthened by muscles moving the joint away from those tissues and holding them under tension for a period of time?
Active stretching
