Biomechanics - Application of Force

Question 1

Muscles attached to the same point but pulling in different directions can result in a ________ direction of movement.

Answer 1

SINGLE

Question 2

Considering anterior and posterior deltoids, if the contraction strength (the 2 forces) are equal, the arm __________.

Answer 2

ABDUCTS

Question 3

Considering anterior and posterior deltoids, if the contraction strength (the 2 forces) are NOT equal, the arm abducts, but __________ in the direction of the stronger force.

Answer 3

DEVIATES

Question 4

The brain can selectively increase or decrease the ___________ strength to achieve a desired action.

Answer 4

CONTRACTION

Question 5

Name the clinically relevant term; which can lead to pain, caused by imbalances in the applications of force?

Answer 5

ABERRENT MOVEMENTS

Question 6

A _________ __________ occurs when two forces act in an equal but opposite direction, resulting in a ___________ effect.

Answer 6

FORCE COUPLE
+
TURNING

Question 7

Upward rotation of the scapula is an example of what sort of application of force?

Answer 7

FORCE COUPLE