which category of motor units typically have the “highest threshold of activation”?slow

which category of motor units typically have the “highest threshold of activation”?

slow

twitch, oxidative motor units

Type 1 motor units

Type 2a motor units

Type 2b motor units

Motor units of the smallest size

Which branch of “Rigid Body Mechanics” is being discussed by the following statement:

“there is approximately 180 degrees of scapulothoracic motion, 120 of which occurs at the GH     

joint, and 60 of which occurs through scapulothoracic motion; the dominant plane of motion is the

frontal plane, but there is also components of scapular and horizontal plane motion”

(NOTE: no knowledge of shoulder anatomy or mechanics is necessary to answer the question)

a.kinetics

b.kinematics

c.fluid mechanics

d.statics

e.deformable body mechanics

A 70kg body will measure which of the following in a gravity free environment?

a.70 x 2.2 = 154lbs

b.0kg

c.70kg

d.70 x .17 (17%) = 11.9kg

e.none of the above

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