Quadriceps

Question 1

Vastus Lateralis
Vastus Medialis
Vastus Intermedius

Answer 1

★ Insertion
Base of patella
Tibial tuberosity of the tibia
★ Isolated Function
Concentrically accelerates knee extension
★ Integrated function
Eccentrically decelerates knee flexion, adduction, and internal rotation
Isometrically stabilizes the knee

Question 2

Rectus femoris

Answer 2

★ Insertion
Base of patella
Tibial tuberosity of the tibia
★ Isolated function
Concentrically accelerates knee extension and hip flexion
★ Integrated function
Eccentrically decelerates knee flexion, adduction, and internal rotation
Decelerates hip extension
Isometrically stabilizes the LPHC and knee