Which of the following would be an incorrect technique for the leg extension exercise?
a. lower the pad until the knees are at a 90 degree angle
b. allow the buttocks to leave the seat during the downward movement phase
c. keep the thighs, lower legs, and feet parallel to one another
d. keep the back flat against the seat throughout the movement
e. squeeze the quadriceps muscles at the top of the movement
Answer: b. allow the buttocks to leave the seat during the downward movement phase