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