Static Analysis

Question 1

What is a key limitation of anthropometric data?

Answer 1

Relationships are based on group of fit, young males

Question 2

What are the major knee flexors?

Answer 2

Hamstrings, gastrocnemius

Question 3

What are the main knee extensors?

Answer 3

Quadriceps femoris

Question 4

What are the hip flexors?

Answer 4

Iliacus, Psoas Major

Question 5

What are the hip extensors?

Answer 5

Hamstrings, gluteus maximus

Question 6

What are the hip abductors?

Answer 6

Abductors (Gluteus minimus, gluteus medius, etc.)

Question 7

What are the major hip adductors?

Answer 7

Adductors (adductor Magnus, adductor longus, etc)

Question 8

What are the major elbow flexors?

Answer 8

Brachialis, Biceps Brachii

Question 9

What are the major elbow extensors?

Answer 9

Triceps brachii

Question 10

What is the “toe” region on a stress-strain curve of physiological loading?

Answer 10

The initial region where ligaments are loaded due to their initial low stiffness. These effects are often omitted.

Question 11

What is the conservative and realistic maximum stress a muscle can handle?

Answer 11

Conservative: 0.2MPa
Realistic: 0.37MPa

Question 12

What is the purpose of optimization?

Answer 12

Find the unique “best” solution among an infinite number, as the human neural system arrives at a best choice somehow

Question 13

What is the purpose of non-linear approach to optimization of muscle stress calculations?

Answer 13

Account for fatigue

Question 14

What are the muscles in the hamstring group?

Answer 14

Semitendinosus
Semimembranosus
Biceps Femoris

Question 15

What are the muscles in the quadriceps?

Answer 15

Rectus Femoris
Vastus Medialis
Vastus Lateralis
Vastus Intermedius

Question 16

Where do the quadriceps originate and insert?

Answer 16

Origin: Ilium
Insertion: Tibial Tuberosity

Question 17

Where do the hamstrings originate and insert?

Answer 17

Origin: ischium
Insertion: Proximal Tibia/Fibula