Assignment Problem: For all parts of this problem consider the above graphs of angle and moment. This is a countermovement jump, where they squat down and then jump up, and a landing. The individual starts and ends at the same standing position and this is a healthy athletic jump.
A) What plane of motion is this showing?
B) What joint is this?
C) From 0 to 2 seconds what is the order of the three types of muscle contractions?
D) What is the peak moment recorded, what is happening in the movement at this point and what is the role of the knee joint muscles at this point?
E) If the length from the knee to the tibial tuberosity, insertion of the quads, is 0.06 meters, what is the linear distance traveled by this point from 3 to 3.75 seconds?