Two lifter's knees are of interest at a specific moment in their lifts. In both lifts,the knee extensor torque is 100 Nm, requiring quadriceps tendon/patellaligament forces of 1000 N (about 220 Ibs). Despite equivalent knee torques andquadriceps forces, patellofemoral joint forces are higher on the knees of lifter A.Briefly explain why.EditViewInsert FormatToolsTable12pt vParagraph vBIUA

Patellofemoral joint consist of posterior patella and anterior femur. It is a diarthrodial plane…

Two lifter's knees are of interest at a specific moment in their lifts. In both lifts, the knee extensor torque is 100 Nm, requiring quadriceps tendon/patella ligament forces of 1000 N (about 220 lbs). Despite equivalent knee torques and quadriceps forces, patellofemoral joint forces are higher on the knees of lifter A. Briefly explain why. B

Two lifter's knees are of interest at a specific moment in their lifts. In both lifts, the knee extensor torque is 100 Nm, requiring quadriceps tendon/patella ligament forces of 1000 N (about 220 lbs). Despite equivalent knee torques and quadriceps forces, patellofemoral joint forces are higher on the knees of lifter A. Briefly explain why. B

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

See similar textbooks

Similar questions

Briefly explain why it is easier to swing the leg through in the swing phase of sprinting with the knee flexed as opposed to extended.
If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from the elbow to the palm of your hand is 18 inches, and you lift a 20 pound weight, how much pull must your muscle exert to achieve elbow flexion? If your biceps brachii muscle attaches to your forearm 2 inches below your elbow, the distance from the elbow to the palm of your hand is 18 inches, and you lift a 20 pound weight, how much pull must your muscle exert to achieve elbow flexion? hhh
When the most medial portion of the weight is traveling downwards, what type of muscular contraction is taking place at the wrist joint? must watch clip to answer https://www.youtube.com/watch?v=PvoauGkB31M a. Isometric b. Concentric c. Eccentric d. Isotonic
If the dumbbell during a bicep curl is held at 90 degrees of elbow flexion, the elbow flexors are: O contracting concentricly contracting eccentricly O contracting isokineticly O contracting isometricly
A bicep curl exercise with dumbbells is an example of flexion of the elbow joint. What would be an antagonistic muscle action to this exercise?
In the patellofemoral jomt, the quadriceps muscle force with knee flexion. O increases decreases does not change
A) Describe the difference between strength and power during a squat. Provide a quantitative example that illustrates the difference. B) During a squat, the weight you have on your shoulders has a certain amount of gravitational potential energy. As you squat down and come to a stop at the bottom of the squat, some of that energy is lost. Where does it go?
When the weight is traveling upwards, what type of muscular contraction is taking place at the wrist joint? must watch video clip to answer https://www.youtube.com/watch?v=6pWu4Xko9qM a. Isometric b. Concentric c. Eccentric d. Isotonic
GIVE 3 EXERCISES THAT CAN BE CONSIDERED AS A LOCOMOTOR MOVEMENT WITH LATERAL ROTATION AND MEDIAL ROTATION MOVEMENT AND WHY?
Discuss the functions of the different types of levers found in our body. How do these different types of levers make our body more useful. Explain each type of lever, the position of the fulcrum, load, and applied force and give an example of each.
Which of the following is true regarding internal/external rotation of the knee? A. Can occur at any angle of knee flexion B. Greater range of motion in internal rotation C. During initial flexion from full extension, knee must unlock by externally rotating D. The popliteus is the muscle responsible for “unlocking” the knee
If a person has a vertical force of 10.25N with a nylon strap of a 2.5cm of width and length of 10cm in the trapezius muscle, how much time does the person need to feel pain in the muscle? How much time is needed to injure or damage the muscle? Must show every mathematical process.