Muscle contraction

Question 1

Isotonic contraction

Answer 1

Muscle contraction that results in the approximation of the muscle’s origin and insertion without a change in its tension. In such a case the operator’s force is less than the pt’s force.

Question 2

Isometric contraction

Answer 2

Muscle contraction that results in the increase in tension without an approximation of origin and insertion. In such a case, the operator’s force and the patient’s force are equal.

Question 3

Isolytic contraction

Answer 3

Muscle contraction against resistance while forcing the muscle to lengthen. In such a case, the operator’s force is more than the patient’s force

Question 4

Concentric contraction

Answer 4

Muscle contraction that results in the approximation of the muscle’s origin and insertion

Question 5

Eccentric contraction

Answer 5

Lengthening of muscle during contraction due to an external force