Lecture 3-Physics based Kinesiology

Question 1

Isokinetic Definition and aspects

Answer 1

Velocity is constant
Resistance is accommodating and select-able
Velocity based exercise

Question 2

Isometric definition and aspects

Answer 2

Velocity is static
Resistance is accommodating and select-able
Velocity based Exercise

Question 3

Isotonic definition and aspects

Answer 3

Velocity is variable
Resistance is constant and non-selectable
Force based exercise

Question 4

Concentric

Answer 4

Force development in a muscle in which the muscle fibrils decrease in length
Shortening muscular activity with positive work

Question 5

Eccentric

Answer 5

Force development in a muscle in which the muscle fibrils increase in length
Lengthening muscular activity with negative work

Question 6

Strength

Answer 6

Force development without regard to time

Force development at an angular velocity of less than 90 Degrees/sec

Question 7

Power

Answer 7

Force development with regard to time

Force development at an angular velocity of greater than 90 degrees/second

Question 8

When is isokentics indicated?

Answer 8

Dynamic strength and power development with contraction type and velocity dependence

Question 9

What type of relationship exists during isokinetic exercise?

Answer 9

An inverse relationship between concentric and eccentric force development

Question 10

What occurs during concentric isokinetic exercise?

Answer 10

At higher angular velocities you get lower force production

Lower velocities, higher force production

Question 11

Why does the inverse relationship occur in concentric isokinetic exercises?

Answer 11

More time for motor unit recruitment

Question 12

What occurs during eccentric isokinetic exercises?

Answer 12

At higher velocities you get higher force production

Lower velocities, lower force production

Question 13

Why does the direct relationship occur in eccentric isokinetic exercises?

Answer 13

Series elastic component of the invested connective tissue

Question 14

What is known about isotonic exercises?

Answer 14

Best mode for kinesthetic neuromuscular re-education
Type of activity utilized in functional activities
Important in neuromuscular re-education of functional eccentric muscular activity

Question 15

What is known about isometric exercises?

Answer 15

Best for strength development-angular specific
Used for people with pain with dynamic activity
No dynamic neuromuscular re-education benefit
Use precaution with patients with labile blood pressure