Principles of Human Movement

Question 1

Length at which muscle can create most tension; too short or too long = reduced force production

Answer 1

Length-tension Relationship

Question 2

Muscles moving together to produce movement

Answer 2

Force-Couple

Question 3

Agonist contracts while antagonist relaxes to allow movement

Answer 3

Reciprocal Inhibition

Question 4

Abnormal rounding of the thoracic spine; usually accompanied by rounded shoulders

Answer 4

Kyphosis

Question 5

Sway back; excessive lumbar curve

Answer 5

Lordosis

Question 6

When overactive muscles decreases neural drive to functional antagonist.

Answer 6

Altered Reciprocal Inhibition