Sliding Filament
how many stages are in the sliding filament theory?
5 stages
What symptoms might indicate nerve involvement in shoulder?
Numbness, weakness, and tingling.
Name the 3 planes of motion
What is Sagittal, Frontal, & Transverse
What does the goniometer do?
Measures range of motion of the joints.
away from mid-line
abduction
what causes myosin to release actin
ATP binding
what are the main bones of the shoulder?
Humerous, scapula, clavicle and sternum
An imaginary line that divides the body into equal right and left portions
What is the midsagittal or median plane?
what are the three main parts of a universal goniometer?
Stationary arm and moving arm.
the movement in the foot when the toes and raise toward the floor.
dorsiflextion
what 3 protein molecules make up thin filaments
tropomyosin, troponin, actin
Name a movement at the glenohumeral?
Flexion, abduction, or rotation
Abduction and adduction, or side-to-side movements of the limbs, occur in this plane.
What is the frontal plane
True or False patients position does not affect the goniometer measurement?
False
muscle shortens while generating force
concentric contraction
it blocks binding between actin and myosin
what is the function of the rotator cuff?
Stabilize glenohumeral joint.
A baseball pitcher throwing a curveball or a golfer making a swing shows motion in this plane
What is transverse plane?
When is the maximum power generated during muscle contractions?
A third of maximum shortening velocity.
the joint recives parial assistance from an oustide force
Active assisted range of motion (AArom)
what are the 2 important binding sites found on the cross bridges of myosin?
ATP and actin
what are the two physiological joints in the shoulder?
Scapula thoracic and subacromial.
What is the difference between Active Range of Motion (AROM) and Passive Range of Motion (PROM)?
AROM is the motion a patient can produce voluntarily using their own muscles. PROM is the motion a therapist or external force moves the patient's joint through without the patient's muscle assistance.
When can a muscle produce the greatest amount of force relative to all contraction types?
Eccentric contractions
what fibers are large in diameter
fast twitch